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First, find the sample proportion p=42/200. Then, use the formula for the confidence interval for a proportion: CI=pz p(1p)/n Where z is the z-score for
First, find the sample proportion p=42/200. Then, use the formula for the confidence interval for a proportion: CI=pz p(1p)/n Where z is the z-score for a 99% confidence level (approximately 2.576). CI=42/2002.576 42/200(142/200)/200)
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Business Analytics Data Analysis and Decision Making
Authors: S. Christian Albright, Wayne L. Winston
5th edition
1133629601, 9781285965529 , 978-1133629603
