113 In a random sample of 400 measurements, 227 possess the characteristic of interest, A. a. Use...

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113 In a random sample of 400 measurements, 227 possess the characteristic of interest, A.

a. Use a 95% confidence interval to estimate the true proportion p of measurements in the population with characteristic A.

b. How large a sample would be needed to estimate p to within .02 with 95% confidence?

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Statistics

ISBN: 9781292022659

12th International Edition

Authors: James T Mcclave, Terry Sincich

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