M.B.A. DEGREE EXAMINATION, NOVEMBER 2017
Health Service Management
RESEARCH METHODOLOGY AND STATISTICS
(2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Write down any two objectives of research.
2. Write a short notes on design of the research project.
3. Briefly explain primary data.
4. Define sampling design.
5. Define null and alternate hypothesis.
6. Define Type I error and Type II error.
7. Find the median if mean is 32.5 and mode is 33.8
8. Define quartile deviation and coefficient of quartile
deviation.
9. From a set of 17 cards numbered 1,2,3,....,17 one is drawn
at random. Find the probability that its number is
divisible by 3 or 7.
10. Define positive and negative correlation.
Sub. Code
21
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Part B x 5 25)
Answer all questions.
11. Briefly explain the difference between research
methods and research methodology.
Or
Write down the criteria's for a good research.
12. Explain the ways in which a survey data can be
collected.
Or
What are the various qualities of a good test?
13. Find the mean, median and mode for the following
Profits per shop 0-10 10-20 20-30 30-40 40-50 50-60
No. of shops 12 18 27 20 17 6
Or
Calculate the quartile deviation for the following
Wages 0-10 10-20 20-30 30-40 40-50 50-60 60-70
No. of workers 12 28 50 66 18 16 10
14. What should be the size of the sample from a set of
200 accounts if the standard deviation of default as
per past experience was 2.6 when a 95% confidence
is desired and sample mean should not differ by
more than half from the population mean?
Or
The null hypothesis is that 20% of the passengers go
in first class, but management recognizes the
possibility that this percentage could be more or
less. A random sample of 100 passengers include 70
passengers holding first class tickets. Can the null
hypothesis be rejected at 10% level of significance?
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15. What points will you keep in mind while preparing
a research report? Explain.
Or
Briefly explain various components of a research
report.
Part C x 10 30)
Answer all questions.
16. Write short notes on the following scales for
measuring attitudes of people
Arbitrary scales
Differential scales
Summated scales
Or
Write down the criterias for selecting
sampling procedure.
Write down the characteristics of a good
sample design.
17. Find the coefficient of skewness based on quartiles
and standard deviation for the following data
Wages 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80
No.of workers 12 16 26 38 22 15 7 4
Or
Calculate the correlation coefficient from the
following data marks obtained in commerce and
Economics
X 50, 60, 58, 47, 49, 33, 65, 43
Y 48, 65, 50, 48, 55, 58, 63, 48
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18. Sample sales in Similar shops in two towns are
taken for a new product with following results
Town Mean sales Variance Size of sample
A 57 5.3 5
B 61 4.8 7
Is there any evidence of difference in sales in the
two towns? (Use level of significance).
Or
A die is thrown 132 times with the following results
No. turned up 1 2 3 4 5 6
Frequency 16 20 25 14 29 28
Test the hypothesis that the die is unbiased.
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