Determine the sample size needed to construct a 95% confidence interval to estimate the average GPA for

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Determine the sample size needed to construct a 95% confidence interval to estimate the average GPA for the student population at Wilmington College with a margin of error equal to 0.2. Assume the standard deviation of the GPA for the student population is 1.0. Verify your result using PHStat.
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Business Statistics

ISBN: 9780321925121

2nd Edition

Authors: Robert A. Donnelly

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