A population mean is 13. The sample mean is 12.8, and the sample standard deviation is two.

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A population mean is 13. The sample mean is 12.8, and the sample standard deviation is two. The sample size is 20.

What distribution should you use to perform a hypothesis test? Assume the underlying population is normal.

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Introductory Business Statistics

ISBN: 202318

1st Edition

Authors: Alexander Holmes , Barbara Illowsky , Susan Dean

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