In each of the following cases, calculate a confidence interval to estimate p1 p2. a. n1

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In each of the following cases, calculate a confidence interval to estimate p1 – p2.

a. n1 = 85, n2 = 90, p1 = .75, p2 = .67, ; level of confidence = 90%.

b. n1 = 1100, n2 = 1300, p1 = .19, p2 = .17; level of confidence = 95%.

c. n1 = 430, n2 = 399, x1 = 275, x2 = 275; level of confidence = 85%.

d. n1 = 1500, n2 = 1500, x1 = 1050, x2 = 1100; level of confidence = 80%.

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Business Statistics for Contemporary Decision Making

ISBN: 978-0470910184

6th Edition

Authors: Ken Black

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Question Posted: Mar 19, 2013 04:49 AM

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In each of the following cases, calculate a confidence interval to estimate p1 p2. a. n1

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a n 1 85 n 2 90 1 75 2 67 For a 90 Confidence Level z 0...View the full answer

Business Statistics for Contemporary Decision Making

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