Delhi University Entrance Test (DUET) 2019 MPhil PhD in Statistics Previous Queston Papers
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
25)
26)
27)
4. [Option ID = 10369]
Correct Answer :-
[Option ID = 10369]
[Question ID = 2572]
1. 2 [Option ID = 10285]
2. 1.78 [Option ID = 10288]
3. 1.5 [Option ID = 10286]
4. 1.28 [Option ID = 10287]
Correct Answer :-
2 [Option ID = 10285]
[Question ID = 2569]
1. is consistent but not unbiased [Option ID = 10274]
2. does not exist [Option ID = 10275]
3. does not depend on the nature of independent variables. [Option ID = 10276]
4. is still unbiased and consistent [Option ID = 10273]
Correct Answer :-
is still unbiased and consistent [Option ID = 10273]
[Question ID = 2588]
1. 2 and 3 only [Option ID = 10351]
2. 1, 2 and 3 [Option ID = 10349]
3. 1 and 2 only [Option ID = 10350]
4. 1 and 3 only [Option ID = 10352]
Correct Answer :-
1, 2 and 3 [Option ID = 10349]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
25)
26)
27)
4. [Option ID = 10369]
Correct Answer :-
[Option ID = 10369]
[Question ID = 2572]
1. 2 [Option ID = 10285]
2. 1.78 [Option ID = 10288]
3. 1.5 [Option ID = 10286]
4. 1.28 [Option ID = 10287]
Correct Answer :-
2 [Option ID = 10285]
[Question ID = 2569]
1. is consistent but not unbiased [Option ID = 10274]
2. does not exist [Option ID = 10275]
3. does not depend on the nature of independent variables. [Option ID = 10276]
4. is still unbiased and consistent [Option ID = 10273]
Correct Answer :-
is still unbiased and consistent [Option ID = 10273]
[Question ID = 2588]
1. 2 and 3 only [Option ID = 10351]
2. 1, 2 and 3 [Option ID = 10349]
3. 1 and 2 only [Option ID = 10350]
4. 1 and 3 only [Option ID = 10352]
Correct Answer :-
1, 2 and 3 [Option ID = 10349]
28)
29)
30)
[Question ID = 2577]
1. 0.26 [Option ID = 10307]
2. 0.01 [Option ID = 10305]
3. 0.04 [Option ID = 10308]
4. 0.45 [Option ID = 10306]
Correct Answer :-
0.01 [Option ID = 10305]
[Question ID = 2574]
1. consistent for b [Option ID = 10294]
2. needs an adjustment to be unbiased for b [Option ID = 10295]
3. needs an adjustment to be consistent for b [Option ID = 10296]
4. unbiased for b [Option ID = 10293]
Correct Answer :-
unbiased for b [Option ID = 10293]
[Question ID = 2559]
1. [Option ID = 10234]
2. [Option ID = 10235]
3. [Option ID = 10236]
4. [Option ID = 10233]
Correct Answer :-
[Option ID = 10233]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
25)
26)
27)
4. [Option ID = 10369]
Correct Answer :-
[Option ID = 10369]
[Question ID = 2572]
1. 2 [Option ID = 10285]
2. 1.78 [Option ID = 10288]
3. 1.5 [Option ID = 10286]
4. 1.28 [Option ID = 10287]
Correct Answer :-
2 [Option ID = 10285]
[Question ID = 2569]
1. is consistent but not unbiased [Option ID = 10274]
2. does not exist [Option ID = 10275]
3. does not depend on the nature of independent variables. [Option ID = 10276]
4. is still unbiased and consistent [Option ID = 10273]
Correct Answer :-
is still unbiased and consistent [Option ID = 10273]
[Question ID = 2588]
1. 2 and 3 only [Option ID = 10351]
2. 1, 2 and 3 [Option ID = 10349]
3. 1 and 2 only [Option ID = 10350]
4. 1 and 3 only [Option ID = 10352]
Correct Answer :-
1, 2 and 3 [Option ID = 10349]
28)
29)
30)
[Question ID = 2577]
1. 0.26 [Option ID = 10307]
2. 0.01 [Option ID = 10305]
3. 0.04 [Option ID = 10308]
4. 0.45 [Option ID = 10306]
Correct Answer :-
0.01 [Option ID = 10305]
[Question ID = 2574]
1. consistent for b [Option ID = 10294]
2. needs an adjustment to be unbiased for b [Option ID = 10295]
3. needs an adjustment to be consistent for b [Option ID = 10296]
4. unbiased for b [Option ID = 10293]
Correct Answer :-
unbiased for b [Option ID = 10293]
[Question ID = 2559]
1. [Option ID = 10234]
2. [Option ID = 10235]
3. [Option ID = 10236]
4. [Option ID = 10233]
Correct Answer :-
[Option ID = 10233]
31)
32)
[Question ID = 2565]
1. [Option ID = 10259]
2. [Option ID = 10258]
3. [Option ID = 10257]
4. [Option ID = 10260]
Correct Answer :-
[Option ID = 10257]
[Question ID = 2560]
1. [Option ID = 10237]
2. [Option ID = 10238]
3. [Option ID = 10239]
4. None of these [Option ID = 10240]
Correct Answer :-
[Option ID = 10237]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
25)
26)
27)
4. [Option ID = 10369]
Correct Answer :-
[Option ID = 10369]
[Question ID = 2572]
1. 2 [Option ID = 10285]
2. 1.78 [Option ID = 10288]
3. 1.5 [Option ID = 10286]
4. 1.28 [Option ID = 10287]
Correct Answer :-
2 [Option ID = 10285]
[Question ID = 2569]
1. is consistent but not unbiased [Option ID = 10274]
2. does not exist [Option ID = 10275]
3. does not depend on the nature of independent variables. [Option ID = 10276]
4. is still unbiased and consistent [Option ID = 10273]
Correct Answer :-
is still unbiased and consistent [Option ID = 10273]
[Question ID = 2588]
1. 2 and 3 only [Option ID = 10351]
2. 1, 2 and 3 [Option ID = 10349]
3. 1 and 2 only [Option ID = 10350]
4. 1 and 3 only [Option ID = 10352]
Correct Answer :-
1, 2 and 3 [Option ID = 10349]
28)
29)
30)
[Question ID = 2577]
1. 0.26 [Option ID = 10307]
2. 0.01 [Option ID = 10305]
3. 0.04 [Option ID = 10308]
4. 0.45 [Option ID = 10306]
Correct Answer :-
0.01 [Option ID = 10305]
[Question ID = 2574]
1. consistent for b [Option ID = 10294]
2. needs an adjustment to be unbiased for b [Option ID = 10295]
3. needs an adjustment to be consistent for b [Option ID = 10296]
4. unbiased for b [Option ID = 10293]
Correct Answer :-
unbiased for b [Option ID = 10293]
[Question ID = 2559]
1. [Option ID = 10234]
2. [Option ID = 10235]
3. [Option ID = 10236]
4. [Option ID = 10233]
Correct Answer :-
[Option ID = 10233]
31)
32)
[Question ID = 2565]
1. [Option ID = 10259]
2. [Option ID = 10258]
3. [Option ID = 10257]
4. [Option ID = 10260]
Correct Answer :-
[Option ID = 10257]
[Question ID = 2560]
1. [Option ID = 10237]
2. [Option ID = 10238]
3. [Option ID = 10239]
4. None of these [Option ID = 10240]
Correct Answer :-
[Option ID = 10237]
33)
34)
35)
36)
[Question ID = 2551]
1. [Option ID = 10204]
2. [Option ID = 10201]
3. [Option ID = 10203]
4. [Option ID = 10202]
Correct Answer :-
[Option ID = 10201]
[Question ID = 2599]
1. an unbiased estimator of population mean [Option ID = 10394]
2. an unbiased estimator of population total [Option ID = 10395]
3. none of the above. [Option ID = 10396]
4. a biased estimator of population mean [Option ID = 10393]
Correct Answer :-
a biased estimator of population mean [Option ID = 10393]
[Question ID = 2555]
1. [Option ID = 10217]
2. [Option ID = 10218]
3. [Option ID = 10220]
4. [Option ID = 10219]
Correct Answer :-
[Option ID = 10217]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
25)
26)
27)
4. [Option ID = 10369]
Correct Answer :-
[Option ID = 10369]
[Question ID = 2572]
1. 2 [Option ID = 10285]
2. 1.78 [Option ID = 10288]
3. 1.5 [Option ID = 10286]
4. 1.28 [Option ID = 10287]
Correct Answer :-
2 [Option ID = 10285]
[Question ID = 2569]
1. is consistent but not unbiased [Option ID = 10274]
2. does not exist [Option ID = 10275]
3. does not depend on the nature of independent variables. [Option ID = 10276]
4. is still unbiased and consistent [Option ID = 10273]
Correct Answer :-
is still unbiased and consistent [Option ID = 10273]
[Question ID = 2588]
1. 2 and 3 only [Option ID = 10351]
2. 1, 2 and 3 [Option ID = 10349]
3. 1 and 2 only [Option ID = 10350]
4. 1 and 3 only [Option ID = 10352]
Correct Answer :-
1, 2 and 3 [Option ID = 10349]
28)
29)
30)
[Question ID = 2577]
1. 0.26 [Option ID = 10307]
2. 0.01 [Option ID = 10305]
3. 0.04 [Option ID = 10308]
4. 0.45 [Option ID = 10306]
Correct Answer :-
0.01 [Option ID = 10305]
[Question ID = 2574]
1. consistent for b [Option ID = 10294]
2. needs an adjustment to be unbiased for b [Option ID = 10295]
3. needs an adjustment to be consistent for b [Option ID = 10296]
4. unbiased for b [Option ID = 10293]
Correct Answer :-
unbiased for b [Option ID = 10293]
[Question ID = 2559]
1. [Option ID = 10234]
2. [Option ID = 10235]
3. [Option ID = 10236]
4. [Option ID = 10233]
Correct Answer :-
[Option ID = 10233]
31)
32)
[Question ID = 2565]
1. [Option ID = 10259]
2. [Option ID = 10258]
3. [Option ID = 10257]
4. [Option ID = 10260]
Correct Answer :-
[Option ID = 10257]
[Question ID = 2560]
1. [Option ID = 10237]
2. [Option ID = 10238]
3. [Option ID = 10239]
4. None of these [Option ID = 10240]
Correct Answer :-
[Option ID = 10237]
33)
34)
35)
36)
[Question ID = 2551]
1. [Option ID = 10204]
2. [Option ID = 10201]
3. [Option ID = 10203]
4. [Option ID = 10202]
Correct Answer :-
[Option ID = 10201]
[Question ID = 2599]
1. an unbiased estimator of population mean [Option ID = 10394]
2. an unbiased estimator of population total [Option ID = 10395]
3. none of the above. [Option ID = 10396]
4. a biased estimator of population mean [Option ID = 10393]
Correct Answer :-
a biased estimator of population mean [Option ID = 10393]
[Question ID = 2555]
1. [Option ID = 10217]
2. [Option ID = 10218]
3. [Option ID = 10220]
4. [Option ID = 10219]
Correct Answer :-
[Option ID = 10217]
37)
38)
39)
[Question ID = 2573]
1. [Option ID = 10289]
2. [Option ID = 10290]
3. [Option ID = 10291]
4. [Option ID = 10292]
Correct Answer :-
[Option ID = 10289]
[Question ID = 2564]
1. Exponential [Option ID = 10253]
2. Gamma [Option ID = 10254]
3. Pareto [Option ID = 10255]
4. None of the above [Option ID = 10256]
Correct Answer :-
Exponential [Option ID = 10253]
[Question ID = 2591]
1. UMVUE of 1/? [Option ID = 10362]
2. UMVUE of P(X? ?) [Option ID = 10364]
3. UMVUE of ? [Option ID = 10361]
4. Unbiased for P(X? ?) but not a Minimum Variance Estimator [Option ID = 10363]
Correct Answer :-
UMVUE of ? [Option ID = 10361]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
25)
26)
27)
4. [Option ID = 10369]
Correct Answer :-
[Option ID = 10369]
[Question ID = 2572]
1. 2 [Option ID = 10285]
2. 1.78 [Option ID = 10288]
3. 1.5 [Option ID = 10286]
4. 1.28 [Option ID = 10287]
Correct Answer :-
2 [Option ID = 10285]
[Question ID = 2569]
1. is consistent but not unbiased [Option ID = 10274]
2. does not exist [Option ID = 10275]
3. does not depend on the nature of independent variables. [Option ID = 10276]
4. is still unbiased and consistent [Option ID = 10273]
Correct Answer :-
is still unbiased and consistent [Option ID = 10273]
[Question ID = 2588]
1. 2 and 3 only [Option ID = 10351]
2. 1, 2 and 3 [Option ID = 10349]
3. 1 and 2 only [Option ID = 10350]
4. 1 and 3 only [Option ID = 10352]
Correct Answer :-
1, 2 and 3 [Option ID = 10349]
28)
29)
30)
[Question ID = 2577]
1. 0.26 [Option ID = 10307]
2. 0.01 [Option ID = 10305]
3. 0.04 [Option ID = 10308]
4. 0.45 [Option ID = 10306]
Correct Answer :-
0.01 [Option ID = 10305]
[Question ID = 2574]
1. consistent for b [Option ID = 10294]
2. needs an adjustment to be unbiased for b [Option ID = 10295]
3. needs an adjustment to be consistent for b [Option ID = 10296]
4. unbiased for b [Option ID = 10293]
Correct Answer :-
unbiased for b [Option ID = 10293]
[Question ID = 2559]
1. [Option ID = 10234]
2. [Option ID = 10235]
3. [Option ID = 10236]
4. [Option ID = 10233]
Correct Answer :-
[Option ID = 10233]
31)
32)
[Question ID = 2565]
1. [Option ID = 10259]
2. [Option ID = 10258]
3. [Option ID = 10257]
4. [Option ID = 10260]
Correct Answer :-
[Option ID = 10257]
[Question ID = 2560]
1. [Option ID = 10237]
2. [Option ID = 10238]
3. [Option ID = 10239]
4. None of these [Option ID = 10240]
Correct Answer :-
[Option ID = 10237]
33)
34)
35)
36)
[Question ID = 2551]
1. [Option ID = 10204]
2. [Option ID = 10201]
3. [Option ID = 10203]
4. [Option ID = 10202]
Correct Answer :-
[Option ID = 10201]
[Question ID = 2599]
1. an unbiased estimator of population mean [Option ID = 10394]
2. an unbiased estimator of population total [Option ID = 10395]
3. none of the above. [Option ID = 10396]
4. a biased estimator of population mean [Option ID = 10393]
Correct Answer :-
a biased estimator of population mean [Option ID = 10393]
[Question ID = 2555]
1. [Option ID = 10217]
2. [Option ID = 10218]
3. [Option ID = 10220]
4. [Option ID = 10219]
Correct Answer :-
[Option ID = 10217]
37)
38)
39)
[Question ID = 2573]
1. [Option ID = 10289]
2. [Option ID = 10290]
3. [Option ID = 10291]
4. [Option ID = 10292]
Correct Answer :-
[Option ID = 10289]
[Question ID = 2564]
1. Exponential [Option ID = 10253]
2. Gamma [Option ID = 10254]
3. Pareto [Option ID = 10255]
4. None of the above [Option ID = 10256]
Correct Answer :-
Exponential [Option ID = 10253]
[Question ID = 2591]
1. UMVUE of 1/? [Option ID = 10362]
2. UMVUE of P(X? ?) [Option ID = 10364]
3. UMVUE of ? [Option ID = 10361]
4. Unbiased for P(X? ?) but not a Minimum Variance Estimator [Option ID = 10363]
Correct Answer :-
UMVUE of ? [Option ID = 10361]
40)
41)
42)
[Question ID = 2553]
1. e
t
[Option ID = 10210]
2. e
-2t
[Option ID = 10211]
3. e
-3t
[Option ID = 10212]
4. e
-t
[Option ID = 10209]
Correct Answer :-
e
-t
[Option ID = 10209]
[Question ID = 2594]
1. [Option ID = 10376]
2. [Option ID = 10375]
3. [Option ID = 10373]
4. [Option ID = 10374]
Correct Answer :-
[Option ID = 10373]
[Question ID = 2557]
1. 30 [Option ID = 10226]
2. 74 [Option ID = 10228]
3. 37 [Option ID = 10227]
4. 25 [Option ID = 10225]
Correct Answer :-
25 [Option ID = 10225]
[Question ID = 2563]
1. [Option ID = 10251]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
25)
26)
27)
4. [Option ID = 10369]
Correct Answer :-
[Option ID = 10369]
[Question ID = 2572]
1. 2 [Option ID = 10285]
2. 1.78 [Option ID = 10288]
3. 1.5 [Option ID = 10286]
4. 1.28 [Option ID = 10287]
Correct Answer :-
2 [Option ID = 10285]
[Question ID = 2569]
1. is consistent but not unbiased [Option ID = 10274]
2. does not exist [Option ID = 10275]
3. does not depend on the nature of independent variables. [Option ID = 10276]
4. is still unbiased and consistent [Option ID = 10273]
Correct Answer :-
is still unbiased and consistent [Option ID = 10273]
[Question ID = 2588]
1. 2 and 3 only [Option ID = 10351]
2. 1, 2 and 3 [Option ID = 10349]
3. 1 and 2 only [Option ID = 10350]
4. 1 and 3 only [Option ID = 10352]
Correct Answer :-
1, 2 and 3 [Option ID = 10349]
28)
29)
30)
[Question ID = 2577]
1. 0.26 [Option ID = 10307]
2. 0.01 [Option ID = 10305]
3. 0.04 [Option ID = 10308]
4. 0.45 [Option ID = 10306]
Correct Answer :-
0.01 [Option ID = 10305]
[Question ID = 2574]
1. consistent for b [Option ID = 10294]
2. needs an adjustment to be unbiased for b [Option ID = 10295]
3. needs an adjustment to be consistent for b [Option ID = 10296]
4. unbiased for b [Option ID = 10293]
Correct Answer :-
unbiased for b [Option ID = 10293]
[Question ID = 2559]
1. [Option ID = 10234]
2. [Option ID = 10235]
3. [Option ID = 10236]
4. [Option ID = 10233]
Correct Answer :-
[Option ID = 10233]
31)
32)
[Question ID = 2565]
1. [Option ID = 10259]
2. [Option ID = 10258]
3. [Option ID = 10257]
4. [Option ID = 10260]
Correct Answer :-
[Option ID = 10257]
[Question ID = 2560]
1. [Option ID = 10237]
2. [Option ID = 10238]
3. [Option ID = 10239]
4. None of these [Option ID = 10240]
Correct Answer :-
[Option ID = 10237]
33)
34)
35)
36)
[Question ID = 2551]
1. [Option ID = 10204]
2. [Option ID = 10201]
3. [Option ID = 10203]
4. [Option ID = 10202]
Correct Answer :-
[Option ID = 10201]
[Question ID = 2599]
1. an unbiased estimator of population mean [Option ID = 10394]
2. an unbiased estimator of population total [Option ID = 10395]
3. none of the above. [Option ID = 10396]
4. a biased estimator of population mean [Option ID = 10393]
Correct Answer :-
a biased estimator of population mean [Option ID = 10393]
[Question ID = 2555]
1. [Option ID = 10217]
2. [Option ID = 10218]
3. [Option ID = 10220]
4. [Option ID = 10219]
Correct Answer :-
[Option ID = 10217]
37)
38)
39)
[Question ID = 2573]
1. [Option ID = 10289]
2. [Option ID = 10290]
3. [Option ID = 10291]
4. [Option ID = 10292]
Correct Answer :-
[Option ID = 10289]
[Question ID = 2564]
1. Exponential [Option ID = 10253]
2. Gamma [Option ID = 10254]
3. Pareto [Option ID = 10255]
4. None of the above [Option ID = 10256]
Correct Answer :-
Exponential [Option ID = 10253]
[Question ID = 2591]
1. UMVUE of 1/? [Option ID = 10362]
2. UMVUE of P(X? ?) [Option ID = 10364]
3. UMVUE of ? [Option ID = 10361]
4. Unbiased for P(X? ?) but not a Minimum Variance Estimator [Option ID = 10363]
Correct Answer :-
UMVUE of ? [Option ID = 10361]
40)
41)
42)
[Question ID = 2553]
1. e
t
[Option ID = 10210]
2. e
-2t
[Option ID = 10211]
3. e
-3t
[Option ID = 10212]
4. e
-t
[Option ID = 10209]
Correct Answer :-
e
-t
[Option ID = 10209]
[Question ID = 2594]
1. [Option ID = 10376]
2. [Option ID = 10375]
3. [Option ID = 10373]
4. [Option ID = 10374]
Correct Answer :-
[Option ID = 10373]
[Question ID = 2557]
1. 30 [Option ID = 10226]
2. 74 [Option ID = 10228]
3. 37 [Option ID = 10227]
4. 25 [Option ID = 10225]
Correct Answer :-
25 [Option ID = 10225]
[Question ID = 2563]
1. [Option ID = 10251]
43)
44)
45)
46)
2. [Option ID = 10250]
3. [Option ID = 10249]
4. None of these [Option ID = 10252]
Correct Answer :-
[Option ID = 10249]
[Question ID = 2598]
1. depends on the values of the sample [Option ID = 10390]
2. depends on the size of the sample [Option ID = 10389]
3. none of these [Option ID = 10392]
4. does not depend on the size of the sample [Option ID = 10391]
Correct Answer :-
depends on the size of the sample [Option ID = 10389]
[Question ID = 2552]
1. 0.5 [Option ID = 10206]
2. 0.05 [Option ID = 10207]
3. 0.95 [Option ID = 10205]
4. 0.005 [Option ID = 10208]
Correct Answer :-
0.95 [Option ID = 10205]
The OC function of a single sampling plan with N=1000, n=89, c=2, p=0.01 is [Question ID
= 2581]
1. 0.94 [Option ID = 10323]
2. 0.95 [Option ID = 10324]
3. 0.93 [Option ID = 10322]
4. 0.92 [Option ID = 10321]
Correct Answer :-
0.92 [Option ID = 10321]
A mobile phone manufacturing company purchases phone batteries in lots of 1000 batteries
each. The lots are accepted up to quality level 0.05 and rejected at more than quality level 0.20.
Acceptance sampling plan is based on a sample of size 25 from each lot and the lot is accepted if
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DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
25)
26)
27)
4. [Option ID = 10369]
Correct Answer :-
[Option ID = 10369]
[Question ID = 2572]
1. 2 [Option ID = 10285]
2. 1.78 [Option ID = 10288]
3. 1.5 [Option ID = 10286]
4. 1.28 [Option ID = 10287]
Correct Answer :-
2 [Option ID = 10285]
[Question ID = 2569]
1. is consistent but not unbiased [Option ID = 10274]
2. does not exist [Option ID = 10275]
3. does not depend on the nature of independent variables. [Option ID = 10276]
4. is still unbiased and consistent [Option ID = 10273]
Correct Answer :-
is still unbiased and consistent [Option ID = 10273]
[Question ID = 2588]
1. 2 and 3 only [Option ID = 10351]
2. 1, 2 and 3 [Option ID = 10349]
3. 1 and 2 only [Option ID = 10350]
4. 1 and 3 only [Option ID = 10352]
Correct Answer :-
1, 2 and 3 [Option ID = 10349]
28)
29)
30)
[Question ID = 2577]
1. 0.26 [Option ID = 10307]
2. 0.01 [Option ID = 10305]
3. 0.04 [Option ID = 10308]
4. 0.45 [Option ID = 10306]
Correct Answer :-
0.01 [Option ID = 10305]
[Question ID = 2574]
1. consistent for b [Option ID = 10294]
2. needs an adjustment to be unbiased for b [Option ID = 10295]
3. needs an adjustment to be consistent for b [Option ID = 10296]
4. unbiased for b [Option ID = 10293]
Correct Answer :-
unbiased for b [Option ID = 10293]
[Question ID = 2559]
1. [Option ID = 10234]
2. [Option ID = 10235]
3. [Option ID = 10236]
4. [Option ID = 10233]
Correct Answer :-
[Option ID = 10233]
31)
32)
[Question ID = 2565]
1. [Option ID = 10259]
2. [Option ID = 10258]
3. [Option ID = 10257]
4. [Option ID = 10260]
Correct Answer :-
[Option ID = 10257]
[Question ID = 2560]
1. [Option ID = 10237]
2. [Option ID = 10238]
3. [Option ID = 10239]
4. None of these [Option ID = 10240]
Correct Answer :-
[Option ID = 10237]
33)
34)
35)
36)
[Question ID = 2551]
1. [Option ID = 10204]
2. [Option ID = 10201]
3. [Option ID = 10203]
4. [Option ID = 10202]
Correct Answer :-
[Option ID = 10201]
[Question ID = 2599]
1. an unbiased estimator of population mean [Option ID = 10394]
2. an unbiased estimator of population total [Option ID = 10395]
3. none of the above. [Option ID = 10396]
4. a biased estimator of population mean [Option ID = 10393]
Correct Answer :-
a biased estimator of population mean [Option ID = 10393]
[Question ID = 2555]
1. [Option ID = 10217]
2. [Option ID = 10218]
3. [Option ID = 10220]
4. [Option ID = 10219]
Correct Answer :-
[Option ID = 10217]
37)
38)
39)
[Question ID = 2573]
1. [Option ID = 10289]
2. [Option ID = 10290]
3. [Option ID = 10291]
4. [Option ID = 10292]
Correct Answer :-
[Option ID = 10289]
[Question ID = 2564]
1. Exponential [Option ID = 10253]
2. Gamma [Option ID = 10254]
3. Pareto [Option ID = 10255]
4. None of the above [Option ID = 10256]
Correct Answer :-
Exponential [Option ID = 10253]
[Question ID = 2591]
1. UMVUE of 1/? [Option ID = 10362]
2. UMVUE of P(X? ?) [Option ID = 10364]
3. UMVUE of ? [Option ID = 10361]
4. Unbiased for P(X? ?) but not a Minimum Variance Estimator [Option ID = 10363]
Correct Answer :-
UMVUE of ? [Option ID = 10361]
40)
41)
42)
[Question ID = 2553]
1. e
t
[Option ID = 10210]
2. e
-2t
[Option ID = 10211]
3. e
-3t
[Option ID = 10212]
4. e
-t
[Option ID = 10209]
Correct Answer :-
e
-t
[Option ID = 10209]
[Question ID = 2594]
1. [Option ID = 10376]
2. [Option ID = 10375]
3. [Option ID = 10373]
4. [Option ID = 10374]
Correct Answer :-
[Option ID = 10373]
[Question ID = 2557]
1. 30 [Option ID = 10226]
2. 74 [Option ID = 10228]
3. 37 [Option ID = 10227]
4. 25 [Option ID = 10225]
Correct Answer :-
25 [Option ID = 10225]
[Question ID = 2563]
1. [Option ID = 10251]
43)
44)
45)
46)
2. [Option ID = 10250]
3. [Option ID = 10249]
4. None of these [Option ID = 10252]
Correct Answer :-
[Option ID = 10249]
[Question ID = 2598]
1. depends on the values of the sample [Option ID = 10390]
2. depends on the size of the sample [Option ID = 10389]
3. none of these [Option ID = 10392]
4. does not depend on the size of the sample [Option ID = 10391]
Correct Answer :-
depends on the size of the sample [Option ID = 10389]
[Question ID = 2552]
1. 0.5 [Option ID = 10206]
2. 0.05 [Option ID = 10207]
3. 0.95 [Option ID = 10205]
4. 0.005 [Option ID = 10208]
Correct Answer :-
0.95 [Option ID = 10205]
The OC function of a single sampling plan with N=1000, n=89, c=2, p=0.01 is [Question ID
= 2581]
1. 0.94 [Option ID = 10323]
2. 0.95 [Option ID = 10324]
3. 0.93 [Option ID = 10322]
4. 0.92 [Option ID = 10321]
Correct Answer :-
0.92 [Option ID = 10321]
A mobile phone manufacturing company purchases phone batteries in lots of 1000 batteries
each. The lots are accepted up to quality level 0.05 and rejected at more than quality level 0.20.
Acceptance sampling plan is based on a sample of size 25 from each lot and the lot is accepted if
47)
48)
49)
50)
the inspected sample contains at the most one defective battery, otherwise rejected. The
consumer risk is [Question ID = 2583]
1. 0.025 [Option ID = 10329]
2. 0.027 [Option ID = 10331]
3. 0.026 [Option ID = 10330]
4. 0.028 [Option ID = 10332]
Correct Answer :-
0.025 [Option ID = 10329]
Customers arrive at a store according to a Poisson process of rate 4 per hour. Given that the
store opens at 9 a.m., what is the probability that exactly one customer has arrived by 9.30 a.m.
and a total of 5 have arrived by 11.30 a.m.? [Question ID = 2575]
1. 0.030 [Option ID = 10298]
2. 0.015 [Option ID = 10297]
3. 0.001 [Option ID = 10299]
4. 0.003 [Option ID = 10300]
Correct Answer :-
0.015 [Option ID = 10297]
The statements below relate to a sufficient statistic based on ?n? random observations from a
uniparametric family of distributions.
1. A sufficient statistic is unique.
2. If T
1
and T
2
are sufficient statistics, then each is linear function of the other.
3. If T is sufficient and f(T) is a one-one function of T, then f(T) is also sufficient.
Which of the above statements is/are correct?
[Question ID = 2589]
1. 2 only [Option ID = 10354]
2. 1 only [Option ID = 10353]
3. 3 only [Option ID = 10355]
4. 1, 2 and 3 [Option ID = 10356]
Correct Answer :-
1 only [Option ID = 10353]
The reliability of a parallel system can be improved by improving the reliability of its
[Question ID = 2586]
1. weakest component [Option ID = 10341]
2. none of these [Option ID = 10344]
3. best component [Option ID = 10342]
4. best as well as weakest component [Option ID = 10343]
Correct Answer :-
weakest component [Option ID = 10341]
The cumulative distribution function of the smallest order statistic is given by [Question ID
= 2562]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
DU MPhil PhD in Sta s cs
Topic:- DU_J19_MPHIL_STATS
Increments in a Poisson process are
[Question ID = 2580]
1. Both (Independent and orderly) and (Stationary and exponential) [Option ID = 10319]
2. Stationary and exponential [Option ID = 10318]
3. Independent and orderly [Option ID = 10317]
4. None of the these [Option ID = 10320]
Correct Answer :-
Independent and orderly [Option ID = 10317]
Which distribution is a univariate analogue of Wishart distribution
[Question ID = 2568]
1. t distribution [Option ID = 10271]
2. exponential [Option ID = 10269]
3. [Option ID = 10270]
4. None of the these [Option ID = 10272]
Correct Answer :-
exponential [Option ID = 10269]
Which of the following statements are true about unrestricted random walks?
1. It is Markovian.
2. Its transition probability is a function of the number of steps in the walk.
[Question ID = 2576]
1. Both 1 and 2 [Option ID = 10303]
2. Only 1 [Option ID = 10301]
3. Only 2 [Option ID = 10302]
4. None [Option ID = 10304]
Correct Answer :-
Only 1 [Option ID = 10301]
Given that a step forward probability p is 0.6, then the probability that a random walk in one
dimension ends in state 3 after 5 steps is
[Question ID = 2578]
1. 0.52 [Option ID = 10310]
2. 0.829 [Option ID = 10309]
3. 0.259 [Option ID = 10311]
5)
6)
7)
8)
4. None of these [Option ID = 10312]
Correct Answer :-
0.829 [Option ID = 10309]
Net reproduction rate cannot be used as a measure of population growth since [Question ID
= 2584]
1. it gives an overestimate of the population [Option ID = 10333]
2. it gives an underestimate of the population [Option ID = 10334]
3. it is defined for female population only [Option ID = 10336]
4. it is defined for male population only [Option ID = 10335]
Correct Answer :-
it gives an overestimate of the population [Option ID = 10333]
Let X
1
, X
2
, X
3
be random observations from a population with mean M. Some estimators of M
are suggested below:
T
1
= (X
1
- 2X
2
), T
2
= (2X
2
? X
3
), T
3
= (X
1
+ X
2
+X
3
)/3, T
4
= (X
1
+3X
2
+X
3
)/5
Which of the above estimators are unbiased? [Question ID = 2587]
1. T
1
and T
2
only [Option ID = 10345]
2. T
1
, T
2
, T
3
and T
4
[Option ID = 10348]
3. T
3
and T
4
only [Option ID = 10346]
4. T
2
, T
3
and T
4
only [Option ID = 10347]
Correct Answer :-
T
1
and T
2
only [Option ID = 10345]
In a certain region the weather patterns have the following sequence. A day is described as
sunny (S) if the sun shines for more than 50% of daylight hours and cloudy (C) if the sun shines
for less than 50% of daylight hours. Data indicate that if it is cloudy one day then it is equally
likely to be cloudy or sunny on the next day, if it is sunny today then there is a probability 1/3
that it is cloudy and 2/3 that it is sunny on the next day. If it is cloudy today, then the probability
that it is cloudy in three days? time is
[Question ID = 2579]
1. 43/108 [Option ID = 10315]
2. 29/72 [Option ID = 10314]
3. 29/108 [Option ID = 10316]
4. 43/72 [Option ID = 10313]
Correct Answer :-
43/72 [Option ID = 10313]
A cohort life table records the survival experience of a group of individuals [Question ID =
2585]
1. for each year of age [Option ID = 10338]
2. for a short period of time [Option ID = 10337]
3. from birth till the death of last member of the group [Option ID = 10340]
4. for age intervals greater than 1 year [Option ID = 10339]
Correct Answer :-
9)
10)
11)
12)
13)
for a short period of time [Option ID = 10337]
Consider a 2
4
factorial experiment conducted in two blocks of size 8 each. If the contents of
one of the blocks are a, c, d, ab, acd, bd, bc, abcd, the confounded interaction is [Question ID =
2595]
1. BCD [Option ID = 10380]
2. ABD [Option ID = 10377]
3. ACD [Option ID = 10378]
4. ABC [Option ID = 10379]
Correct Answer :-
ABD [Option ID = 10377]
In estimating a parameter ?, U is an unbiased estimator of ? and T is a sufficient statistic.
Consider the following statements:
1. E(U|T) is an unbiased estimator of ? which has a variance not exceeding the variance of U.
2. If T is completely sufficient, then E(U|T) is the unique UMVU estimator of ?.
Which of the above statements is/are correct? [Question ID = 2592]
1. 2 only [Option ID = 10366]
2. 1 only [Option ID = 10365]
3. Both 1 and 2 [Option ID = 10367]
4. Neither 1 nor 2 [Option ID = 10368]
Correct Answer :-
1 only [Option ID = 10365]
In case of ?exact identification? of a simultaneous equation model, the structural coefficients
and the reduced form coefficients : [Question ID = 2571]
1. can not be determined uniquely. [Option ID = 10284]
2. are equal in number [Option ID = 10282]
3. are uncorrelated [Option ID = 10283]
4. are the same [Option ID = 10281]
Correct Answer :-
are the same [Option ID = 10281]
Let X
1
, X
2
,?, X
n
be a random sample of size n taken from the population, where pdf or pmf
is f(x, ?). An estimator T=T(X
1
, X
2
,?, X
n
) is said to be sufficient for ? if
1. The conditional distribution of X
1
, X
2
,?, X
n
given T, is independent of ?.
2. It contains all the information in the sample about the parameter ?.
Which of the above is/are correct? [Question ID = 2590]
1. 2 only [Option ID = 10358]
2. 1 only [Option ID = 10357]
3. Both 1 and 2 [Option ID = 10359]
4. Neither 1 nor 2 [Option ID = 10360]
Correct Answer :-
1 only [Option ID = 10357]
The average number of samples required to declare a process out of statistical control, when
the probability of a sample point falling between the control limits is half, is [Question ID =
14)
15)
16)
2582]
1. 2 [Option ID = 10325]
2. 8 [Option ID = 10327]
3. 16 [Option ID = 10328]
4. 4 [Option ID = 10326]
Correct Answer :-
2 [Option ID = 10325]
Non-sampling errors are caused due to:
1. Response errors
2. Non-responses
3. Sampling method
4. Processing of data code
Which of the above statements are correct? [Question ID = 2600]
1. 1, 2 and 4 only [Option ID = 10400]
2. 2, 3 and 4 only [Option ID = 10399]
3. 1 and 2 only [Option ID = 10397]
4. 1 and 4 only [Option ID = 10398]
Correct Answer :-
1 and 2 only [Option ID = 10397]
For a two-way classified data with p levels of factor A, q levels of factor B and m
observations per cell, the degrees of freedom for error sum of squares is [Question ID = 2596]
1. [Option ID = 10381]
2. [Option ID = 10382]
3. [Option ID = 10383]
4. [Option ID = 10384]
Correct Answer :-
[Option ID = 10381]
[Question ID = 2554]
1. [Option ID = 10213]
2. [Option ID = 10214]
3. [Option ID = 10216]
17)
18)
19)
4. [Option ID = 10215]
Correct Answer :-
[Option ID = 10213]
[Question ID = 2566]
1. [Option ID = 10261]
2. [Option ID = 10263]
3. [Option ID = 10264]
4. [Option ID = 10262]
Correct Answer :-
[Option ID = 10261]
[Question ID = 2556]
1. 1/6 [Option ID = 10223]
2. ? [Option ID = 10221]
3. 1/3 [Option ID = 10222]
4. 1/9 [Option ID = 10224]
Correct Answer :-
? [Option ID = 10221]
[Question ID = 2570]
1. another name for the Ordinary Least Square Estimator [Option ID = 10277]
20)
21)
2. is the Ordinary Least Square Estimator in the limit [Option ID = 10278]
3. is used when the Ordinary Least Square Estimator is not consistent. [Option ID = 10280]
4. used when the Ordinary Least Square Estimator is biased but consistent [Option ID = 10279]
Correct Answer :-
another name for the Ordinary Least Square Estimator [Option ID = 10277]
[Question ID = 2567]
1. [Option ID = 10267]
2. [Option ID = 10265]
3. [Option ID = 10268]
4. [Option ID = 10266]
Correct Answer :-
[Option ID = 10265]
[Question ID = 2561]
1. Both 1 and 3 [Option ID = 10243]
2. Both 1 and 4 [Option ID = 10242]
3. Both 1 and 2 [Option ID = 10241]
22)
23)
24)
4. Both 2 and 3 [Option ID = 10244]
Correct Answer :-
Both 1 and 2 [Option ID = 10241]
[Question ID = 2558]
1. 1/3 [Option ID = 10231]
2. 2/5 [Option ID = 10232]
3. Does not exist [Option ID = 10229]
4. ? [Option ID = 10230]
Correct Answer :-
Does not exist [Option ID = 10229]
[Question ID = 2597]
1. [Option ID = 10387]
2. [Option ID = 10388]
3. [Option ID = 10386]
4. [Option ID = 10385]
Correct Answer :-
[Option ID = 10385]
[Question ID = 2593]
1. [Option ID = 10371]
2. [Option ID = 10370]
3. [Option ID = 10372]
25)
26)
27)
4. [Option ID = 10369]
Correct Answer :-
[Option ID = 10369]
[Question ID = 2572]
1. 2 [Option ID = 10285]
2. 1.78 [Option ID = 10288]
3. 1.5 [Option ID = 10286]
4. 1.28 [Option ID = 10287]
Correct Answer :-
2 [Option ID = 10285]
[Question ID = 2569]
1. is consistent but not unbiased [Option ID = 10274]
2. does not exist [Option ID = 10275]
3. does not depend on the nature of independent variables. [Option ID = 10276]
4. is still unbiased and consistent [Option ID = 10273]
Correct Answer :-
is still unbiased and consistent [Option ID = 10273]
[Question ID = 2588]
1. 2 and 3 only [Option ID = 10351]
2. 1, 2 and 3 [Option ID = 10349]
3. 1 and 2 only [Option ID = 10350]
4. 1 and 3 only [Option ID = 10352]
Correct Answer :-
1, 2 and 3 [Option ID = 10349]
28)
29)
30)
[Question ID = 2577]
1. 0.26 [Option ID = 10307]
2. 0.01 [Option ID = 10305]
3. 0.04 [Option ID = 10308]
4. 0.45 [Option ID = 10306]
Correct Answer :-
0.01 [Option ID = 10305]
[Question ID = 2574]
1. consistent for b [Option ID = 10294]
2. needs an adjustment to be unbiased for b [Option ID = 10295]
3. needs an adjustment to be consistent for b [Option ID = 10296]
4. unbiased for b [Option ID = 10293]
Correct Answer :-
unbiased for b [Option ID = 10293]
[Question ID = 2559]
1. [Option ID = 10234]
2. [Option ID = 10235]
3. [Option ID = 10236]
4. [Option ID = 10233]
Correct Answer :-
[Option ID = 10233]
31)
32)
[Question ID = 2565]
1. [Option ID = 10259]
2. [Option ID = 10258]
3. [Option ID = 10257]
4. [Option ID = 10260]
Correct Answer :-
[Option ID = 10257]
[Question ID = 2560]
1. [Option ID = 10237]
2. [Option ID = 10238]
3. [Option ID = 10239]
4. None of these [Option ID = 10240]
Correct Answer :-
[Option ID = 10237]
33)
34)
35)
36)
[Question ID = 2551]
1. [Option ID = 10204]
2. [Option ID = 10201]
3. [Option ID = 10203]
4. [Option ID = 10202]
Correct Answer :-
[Option ID = 10201]
[Question ID = 2599]
1. an unbiased estimator of population mean [Option ID = 10394]
2. an unbiased estimator of population total [Option ID = 10395]
3. none of the above. [Option ID = 10396]
4. a biased estimator of population mean [Option ID = 10393]
Correct Answer :-
a biased estimator of population mean [Option ID = 10393]
[Question ID = 2555]
1. [Option ID = 10217]
2. [Option ID = 10218]
3. [Option ID = 10220]
4. [Option ID = 10219]
Correct Answer :-
[Option ID = 10217]
37)
38)
39)
[Question ID = 2573]
1. [Option ID = 10289]
2. [Option ID = 10290]
3. [Option ID = 10291]
4. [Option ID = 10292]
Correct Answer :-
[Option ID = 10289]
[Question ID = 2564]
1. Exponential [Option ID = 10253]
2. Gamma [Option ID = 10254]
3. Pareto [Option ID = 10255]
4. None of the above [Option ID = 10256]
Correct Answer :-
Exponential [Option ID = 10253]
[Question ID = 2591]
1. UMVUE of 1/? [Option ID = 10362]
2. UMVUE of P(X? ?) [Option ID = 10364]
3. UMVUE of ? [Option ID = 10361]
4. Unbiased for P(X? ?) but not a Minimum Variance Estimator [Option ID = 10363]
Correct Answer :-
UMVUE of ? [Option ID = 10361]
40)
41)
42)
[Question ID = 2553]
1. e
t
[Option ID = 10210]
2. e
-2t
[Option ID = 10211]
3. e
-3t
[Option ID = 10212]
4. e
-t
[Option ID = 10209]
Correct Answer :-
e
-t
[Option ID = 10209]
[Question ID = 2594]
1. [Option ID = 10376]
2. [Option ID = 10375]
3. [Option ID = 10373]
4. [Option ID = 10374]
Correct Answer :-
[Option ID = 10373]
[Question ID = 2557]
1. 30 [Option ID = 10226]
2. 74 [Option ID = 10228]
3. 37 [Option ID = 10227]
4. 25 [Option ID = 10225]
Correct Answer :-
25 [Option ID = 10225]
[Question ID = 2563]
1. [Option ID = 10251]
43)
44)
45)
46)
2. [Option ID = 10250]
3. [Option ID = 10249]
4. None of these [Option ID = 10252]
Correct Answer :-
[Option ID = 10249]
[Question ID = 2598]
1. depends on the values of the sample [Option ID = 10390]
2. depends on the size of the sample [Option ID = 10389]
3. none of these [Option ID = 10392]
4. does not depend on the size of the sample [Option ID = 10391]
Correct Answer :-
depends on the size of the sample [Option ID = 10389]
[Question ID = 2552]
1. 0.5 [Option ID = 10206]
2. 0.05 [Option ID = 10207]
3. 0.95 [Option ID = 10205]
4. 0.005 [Option ID = 10208]
Correct Answer :-
0.95 [Option ID = 10205]
The OC function of a single sampling plan with N=1000, n=89, c=2, p=0.01 is [Question ID
= 2581]
1. 0.94 [Option ID = 10323]
2. 0.95 [Option ID = 10324]
3. 0.93 [Option ID = 10322]
4. 0.92 [Option ID = 10321]
Correct Answer :-
0.92 [Option ID = 10321]
A mobile phone manufacturing company purchases phone batteries in lots of 1000 batteries
each. The lots are accepted up to quality level 0.05 and rejected at more than quality level 0.20.
Acceptance sampling plan is based on a sample of size 25 from each lot and the lot is accepted if
47)
48)
49)
50)
the inspected sample contains at the most one defective battery, otherwise rejected. The
consumer risk is [Question ID = 2583]
1. 0.025 [Option ID = 10329]
2. 0.027 [Option ID = 10331]
3. 0.026 [Option ID = 10330]
4. 0.028 [Option ID = 10332]
Correct Answer :-
0.025 [Option ID = 10329]
Customers arrive at a store according to a Poisson process of rate 4 per hour. Given that the
store opens at 9 a.m., what is the probability that exactly one customer has arrived by 9.30 a.m.
and a total of 5 have arrived by 11.30 a.m.? [Question ID = 2575]
1. 0.030 [Option ID = 10298]
2. 0.015 [Option ID = 10297]
3. 0.001 [Option ID = 10299]
4. 0.003 [Option ID = 10300]
Correct Answer :-
0.015 [Option ID = 10297]
The statements below relate to a sufficient statistic based on ?n? random observations from a
uniparametric family of distributions.
1. A sufficient statistic is unique.
2. If T
1
and T
2
are sufficient statistics, then each is linear function of the other.
3. If T is sufficient and f(T) is a one-one function of T, then f(T) is also sufficient.
Which of the above statements is/are correct?
[Question ID = 2589]
1. 2 only [Option ID = 10354]
2. 1 only [Option ID = 10353]
3. 3 only [Option ID = 10355]
4. 1, 2 and 3 [Option ID = 10356]
Correct Answer :-
1 only [Option ID = 10353]
The reliability of a parallel system can be improved by improving the reliability of its
[Question ID = 2586]
1. weakest component [Option ID = 10341]
2. none of these [Option ID = 10344]
3. best component [Option ID = 10342]
4. best as well as weakest component [Option ID = 10343]
Correct Answer :-
weakest component [Option ID = 10341]
The cumulative distribution function of the smallest order statistic is given by [Question ID
= 2562]
1. [Option ID = 10248]
2. [Option ID = 10246]
3. [Option ID = 10245]
4. [Option ID = 10247]
Correct Answer :-
[Option ID = 10245]
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This post was last modified on 19 June 2020