M.Phil. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Commerce
TECHNIQUES OF BUSINESS RESEARCH
(CBCS 2017 onwards)
Time 3 Hours Maximum 75 Marks
Section A x 3 21)
Answer all the questions.
1. Give meaning of various approaches to research.
2. Which measure of Dispersion to use? Explain.
3. Comment the term two-tailed and one-tailed test of
hypothesis.
4. Give the important classification of ANOVA.
5. What are the various methods of studying correlation?
6. Explain and give the meaning of
7. Point out the significant of 'Regression Analysis'.
Section B 6 24)
Answer any four questions.
8. Distinguish between Correlation and Association.
9. When and how multiple logistic regression can be used in
measuring a relationship?
10. Draw and explain the specimen of ANOVA table.
Sub. Code
7PCO1C2
AFS-0193
2
Wk ser
11. Find the most likely production corresponding to a rainfall
40" from the following data
Rainfall Production
Average 30" 500 kg
Standard Deviation 5" 100 kg
Co-efficient of correlation 0.8.
12. Differentiate between Regression Analysis and
Correlation.
13. Discuss and more widely using a large number of
'Non-Parametric-Tests'.
Section C 10 20)
Answer all questions choosing either or
14. The figures given below are the theoretical
frequencies of distribution, and the frequencies
of the normal distribution having the same mean,
standard deviation and the total frequency as
in
1 5 20 28 42 22 15 5 2
1 6 18 25 40 25 18 6 1
Apply the 2 test of goodness of fit.
Or
Given the following data
X 6 2 10 4 8
Y 9 11 5 8 7
AFS-0193
3
Wk ser
Find the two regression equations and calculate the
standard error of the estimates(S y.x and Sx.y).
15. Describe the techniques of ANOVA foe one-way an
Two-way classifications.
Or
Use the sign test to see if there is a difference
between the number of days until collection of an
account receivable before and after a new collection
policy. Use the 0.05 significance level.
Before 30 28 34 35 40 42 33 38 34 45
After 32 29 33 32 37 43 40 41 37 44
Before 28 27 25 41 36
After 27 33 30 38 36
Section D 10 10)
(Compulsory)
16. Eleven sales executive trainees are assigned selling jobs
right after their recruitment. After a fortnight they are
withdrawn from their field duties and given a month's
training for executive sales. Sales executed by them in
thousands of rupees before and after the training, in the
same period are listed below
Sales Rs.) (Before Training) 23 20 19 21 18 20 18
Sales Rs.) (After Training) 24 19 21 18 20 22 20
Sales Rs.) (Before Training) 17 23 16 19
Sales Rs.) (After Training) 20 23 20 27
Do these data indicate that the training has contributed
to their performance?