A 99% confidence interval for a population mean based on a sample of size 64 is computed

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A 99% confidence interval for a population mean based on a sample of size 64 is computed to be (16.3, 18.7). How large a sample is needed so that a 99% confidence interval will specify the mean to within ±1.0?

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Statistics For Engineers And Scientists

ISBN: 9780073376332

3rd Edition

Authors: William Navidi

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Question Posted: May 17, 2016 07:49 AM

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A 99% confidence interval for a population mean based on a sample of size 64 is computed

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