Page 86 - DMGT404 RESEARCH_METHODOLOGY

Research Methodology

Notes 10. Suppose, the population consists of 45,000 households, divided into five (5) strata on the
basis of monthly income. This can be illustrating as below:
0 - 1000

1001 - 5000
5001 - 7500
7501 - 10,000
Above 10,000

Then
(a) Find out the number of units from each strata if the sample constitutes 1% of the
population.

(b) If selection is for 150 items selecting equally from each strata, find out the number of
sample units from each strata.

Answers: Self Assessment

1. target 2. frame
3. large, homogeneous 4. small
5. target 6. resources
7. probability, non-probability 8. two

9. Equal Probability 10. Varying Probability
11. same 12. disorganized
13. Experienced 14. sample size
15. sampling frame 16. non response
17. larger 18. precision
19. population 20. standard error

4.11 Further Readings

Books Cooper and Schinder, Business Research Methods, TMH.

CR Kotari, Research Methodology, Vishwa Prakashan.
David Luck and Ronald Rubin, Marketing Research, PHI.
Naresh Amphora, Marketing Research, Pearson Education.
S.N. Murthy & U. Bhojanna, Business Research Methods, 3rd Edition, Excel Books.

William Zikmund, Business Research Methods, Thomson.

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