Assuming that n1 - n2, find the sample sizes needed to estimate (p1 - p2) for each
Question:
a. Margin of error = .01 with 99% confidence. Assume that p1 ≈ .4 and p2 ≈ .7.
b. A 90% confidence interval of width .05. Assume that there is no prior information available to obtain approximate values of p1 and p2.
c. Margin of error = .03 with 90% confidence. Assume that p1 ≈ .2 and p2 ≈ .3.
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a For confidence coefficient 99 a 01 and a 2 012 005 005 z 258 b For confide...View the full answer
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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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