Consider the following set of samples obtained from two normally distributed populations whose variances are equal: a.

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Consider the following set of samples obtained from two normally distributed populations whose variances are equal:

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a. Suppose that the samples were independent. Perform a test of hypothesis to determine if there is a difference in the two population means. Use a significance level of 0.05.
b. Now suppose that the samples were paired samples. Perform a test of hypothesis to determine if there is a difference in the two population means.
c. How do you account for the difference in the outcomes of part a and part b? Support your assertions with a statistical rationale.
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Business Statistics A Decision Making Approach

ISBN: 9780133021844

9th Edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

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