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Unit 12: Hypothesis Testing
15. A random sample of 640 persons from a village provided the following information: Notes
Effect of Influenza New drug administered New drug not Total
administered
Attacked 100 60 160
Not attacked 200 280 480
Total 300 340 640
Test whether the new drug was effective in preventing the attack of influenza.
Answers: Self Assessment
1. confirmatory data 2. significance level
3. alternate 4. Type 1
5. Type 2 6. bivariate
7. ratio 8. 2
9. independent 10. 50
11. ANOVA 12. quantitative
13. Mann Whitney “U” 14. Kolmogorov-Smirnov
15. matched 16. nominal, ordinal
17. Cox and Stuart 18. Non-parametric
12.10 Further Readings
Books Abrams, M.A, Social Surveys and Social Action, London: Heinemann, 1951.
Arthur, Maurice, Philosophy of Scientific Investigation, Baltimore: John Hopkins
University Press, 1943.
R.S. Bhardwaj, Business Statistics, Excel Books, New Delhi, 2008.
S.N. Murthy and U. Bhojanna, Business Research Methods, Excel Books, 2007.
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