Suppose you want to estimate the difference between two population means correct to within 3.2 with probability
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Suppose you want to estimate the difference between two population means correct to within 3.2 with probability
.95. If prior information suggests that the population variances are approximately equal to s1 2
= s22
= 10 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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Related Book For
Statistics Plus New Mylab Statistics With Pearson Etext Access Card Package
ISBN: 978-0134090436
13th Edition
Authors: James Mcclave ,Terry Sincich
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