Two independent random samples are taken from two populations. The results of these samples are summarized in
Question:
a. Form a 90% confidence interval for (µ1 - µ2).
b. Test H0: (µ1 - µ2) = 0 against Ha: (µ1 - µ2) 0. Use α = .01.
c. What sample sizes would be required if you wish to estimate (µ1 - µ2) to within .2 with 90% confidence? Assume that n1 = n2.
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Related Book For
Statistics For Business And Economics
ISBN: 9780321826237
12th Edition
Authors: James T. McClave, P. George Benson, Terry T Sincich
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