[Max. Marks: 100]
BIOSTATISTICS
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Q.P. CODE: 9763
(QP contains two pages)
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Your answers should be specific to the questions asked.Draw neat, labeled diagrams wherever necessary.
LONG ESSAY
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3 X 10 = 30 Marks
1.
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Following data depicts the awareness on his/her illness amongst hypertensive patients bygender of patient.
Test whether there is any association between awareness of disease with gender of the patient
Gender
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Yes
No
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TotalMale
18
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44
62
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Female12
26
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38
Total
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3070
100
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Note: Test statistics value for rejection of null hypothesis at P=0.05 is 3.84
2.
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Describe different methods of sampling for a survey in a community.3.
In an epidemic situation of a disease in a community, it was estimated that 50% of the
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population were suffering from the disease. Calculate the probability of three or four personswould be suffering from the disease in household of six persons.
SHORT ESSAY (Answer any ten)
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10 X 05 = 50 Marks
4.
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Describe different methods of data collection with their merits and demerits.5.
Briefly explain different non-parametric tests of significance used for comparing estimates from
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samples.
6.
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Following are the Mean and Standard deviation of two sets of data. Interpret which one hashigher variability using co-efficient of variation
Waiting time at Reception counter Mean: 5.5 mts S.D:1.0 mts
Waiting time for consultation Mean: 30 mts S.D:5.5 mts
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7.
Describe Binomial and Poisson distributions with examples.
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8.What is the role of sample size in interpretation of estimates from samples? Describe the
formula for calculation of sample size for descriptive survey.
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9.
Explain the difference between correlation and regression. Explain their uses in Public health
sampling enumeration.
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10.
Define a Sample and Population. Describe differences between population enumeration and
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sampling enumeration.11.
Briefly illustrate any two parametric tests as applicable to comparison of differences between
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sample estimates in quantitative data.12.
Describe systemic and multistage sampling methods.
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13.
What is Life Table? Describe different columns of a Life table.
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14.Describe different measures of variability.
15.
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Describe different Graphical methods of presentation of data.
OBJECTIVE TYPE (MCQ's, One word, True/False or One/Two
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10 X 02 = 20 MarksSentence)
16.
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Median is used as measure of what?
a) Correlation
b) Scatter
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c) Central tendency
d) Trend
17.
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Validity in measurement refers to:
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Rajiv Gandhi University of Health Sciences
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a) Truthfulness of data
b) Variability of data
c) Reproducibility of data
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d) Authenticity of data18.
Define variance and give example.
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19.
Life table is an analytical method to understand the survival pattern of population using
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a) Present age specific death rates of the populationb) Crude death rate of population
c) Overall morbidity rates of the population
d) Infant mortality of the population
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20.
A survey was conducted in a community to understand the perceptions on antenatal care
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practices 10 antenatal mothers were chosen by the investigator according to his choice. What isthe type of sampling followed?
a) Simple random followed
b) Stratified random sample
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c) Purposive sample
d) Systematic random sample
21.
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Multiple correlation
22.
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Monitoring and evaluation surveys23.
Qualitative and quantitative data
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24.
Sample size for survey
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25.Interview method of data collection
* * * * *
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