Two independent random samples of sizes n1 = 4 and n2 = 5 are selected from each

Question:

Two independent random samples of sizes n1 = 4 and n2 = 5 are selected from each of two normal populations:

a. Calculate s2, the pooled estimator of s2.
b. Find a 90% confidence interval for (µ1 - µ2), the difference between the two population means.
c. Test H0: (µ1 - µ2) = 0 against Ha: (µ1 - µ2)

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Introduction To Probability And Statistics

ISBN: 9781133103752

14th Edition

Authors: William Mendenhall, Robert Beaver, Barbara Beaver

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Question Posted: Apr 15, 2016 07:24 AM

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Two independent random samples of sizes n1 = 4 and n2 = 5 are selected from each

Question:

Population 1 12 3 8 5 Population 2 14 7 7 9 6

Step by Step Answer:

a When the actual data are given and s 2 must be calculated the calculation is done by using yo...View the full answer

Introduction To Probability And Statistics

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