Suppose you want to estimate the difference between two populations means correct to within 1.8 with a

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Suppose you want to estimate the difference between two populations means correct to within 1.8 with a 95% confidence interval. If prior information suggests that the population variances are approximately equal to σ21 = σ22 = 14 and you want to select independent random samples of equal size from the populations, how large should the sample sizes, n1 and n2, be?
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Statistics For Business And Economics

ISBN: 9780321826237

12th Edition

Authors: James T. McClave, P. George Benson, Terry T Sincich

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