Download JNTUH (Jawaharlal Nehru Technological University Hyderabad) MBA (Master of Business Administration) 1st Semester (First Semester) R17 2020 Jan 741AD Business Statistics Previous Question Paper
Code No: 741AD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MBA I Semester Examinations, January - 2020
BUSINESS STATISTICS
Time: 3hours Max.Marks:75
Note: This question paper contains two parts A and B.
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B
consists of 5 Units. Answer any one full question from each unit. Each question
carries 10 marks and may have a, b, c as sub questions.
PART - A 5 ? 5 Marks = 25
1.a) State the functions of Statistics. [5]
b) Explain briefly ?Kurtosis?. [5]
c) Explain different types of graphs. [5]
d) Explain the properties of regression coefficients. [5]
e) Explain any one model of time series analysis. [5]
PART - B 5 ? 10 Marks = 50
2. Calculate Mean, Median and Mode for the following distribution:
Monthly wages No.of workers
(Rs.)
Less than 2,000 78
2,000 ? 4,000 165
4,000 ? 6,000 93
6,000 ? 8,000 42
8,000 ? 10,000 12 [10]
OR
3. Find the Geometric Mean for the data given below:
Marks Frequency
4-8 6
8-12 10
12-16 18
16-20 30
20-24 15
24-28 12
28-32 10
32-36 6
36-40 2 [10]
4. Calculate the quartile deviation and its coefficient of quartile deviation from the
following data:
Wages in Rupees per week : < 100 100-105 105-110 110-115 over 105
No.of wage earners : 14 62 99 18 7 [10]
OR
R17
S
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Code No: 741AD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MBA I Semester Examinations, January - 2020
BUSINESS STATISTICS
Time: 3hours Max.Marks:75
Note: This question paper contains two parts A and B.
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B
consists of 5 Units. Answer any one full question from each unit. Each question
carries 10 marks and may have a, b, c as sub questions.
PART - A 5 ? 5 Marks = 25
1.a) State the functions of Statistics. [5]
b) Explain briefly ?Kurtosis?. [5]
c) Explain different types of graphs. [5]
d) Explain the properties of regression coefficients. [5]
e) Explain any one model of time series analysis. [5]
PART - B 5 ? 10 Marks = 50
2. Calculate Mean, Median and Mode for the following distribution:
Monthly wages No.of workers
(Rs.)
Less than 2,000 78
2,000 ? 4,000 165
4,000 ? 6,000 93
6,000 ? 8,000 42
8,000 ? 10,000 12 [10]
OR
3. Find the Geometric Mean for the data given below:
Marks Frequency
4-8 6
8-12 10
12-16 18
16-20 30
20-24 15
24-28 12
28-32 10
32-36 6
36-40 2 [10]
4. Calculate the quartile deviation and its coefficient of quartile deviation from the
following data:
Wages in Rupees per week : < 100 100-105 105-110 110-115 over 105
No.of wage earners : 14 62 99 18 7 [10]
OR
R17
S
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5. Calculate Karl Pearson?s coefficient skewness from the following data:
Profit (Rs.lakhs) No.of Cos.
70-80 12
80-90 18
90-100 35
100-110 42
110-120 50
120-130 45
130-140 30
140-150 8 [10]
6. Explain different types of tabulations with suitable examples. [10]
OR
7. Below are given the gains in weights (lbs.) of items on ten diets X and Y
Diet X: 25 32 30 32 24 14 32
Diet Y: 24 34 22 30 42 31 40 30 32 35
Test at 5% level, whether the two diets differ significantly with regard to increase in
weight. [10]
8. The following table gives the retail prices of a commodity in some shops selected at
random in four cities:
Price(Rs.)
City
A 22 24 27 23
B 20 19 23 -
C 19 17 21 18
D 24 26 29 26
Carry out the analysis of variance to test the significant of the difference between the
price of commodity in four cities. [10]
OR
9. Seven methods of imparting business education were ranked by the MBA students of
two Universities as follows:
Methods of teaching : I II III IV V VI VII
Rank of students of University A : 2 1 5 3 4 7 6
Rank of students of University B : 1 3 2 4 7 5 6
Calculate rank correlation coefficient. [10]
10. The sales of a company in lakhs of rupees for the years 2011 to 2017 are given below:
Year: 2011 2012 2013 2014 2015 2016 2017
Sales: 30 49 67 90 130 190 273
Find trend values by using exponential trend method and estimate the value for 2018.
[10]
OR
11. The following table gives the aptitude test scores and Productivity indices of 10
workers selected at random:
Aptitude Scores (X) : 6 6 6 7 7 2 4 5 7 6 8
Productivity Index (Y) : 6 6 6 8 8 4 5 6 6 6 8
Calculate the two regression equations. [10]
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This post was last modified on 23 October 2020