Page 379 - DMTH404_STATISTICS

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Unit 26:  - Test Hypothesis

5. A normal distribution was fitted to the distribution of new business brought by 100 Notes
insurance agents with the following results:

New business ('000Rs): 10-20 20-30 30-40 40-50 50-60
Observed Frequency : 10 20 33 22 15
Expected Frequency : 9 22 32 25 12

Test the goodness of fit of the distribution.

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Hint : The degrees of freedom of the  statistic would be 4.
Answers: Self Assessment

1. linear correlation 2. independent random
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3. goodness of fit 4.  - test
26.7 Further Readings

Books Sheldon M. Ross, Introduction to Probability Models, Ninth Edition, Elsevier
Inc., 2007.

Jan Pukite, Paul Pukite, Modeling for Reliability Analysis, IEEE Press on
Engineering of Complex Computing Systems, 1998.

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