Explain why the critical value for a given confidence level when the population variance is not known

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Explain why the critical value for a given confidence level when the population variance is not known is always greater than the critical value for the same confidence level when the population variance is known.

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Business Statistics A Decision Making Approach

ISBN: 9780133021844

9th Edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

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Question Posted: Dec 02, 2015 02:09 AM

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Explain why the critical value for a given confidence level when the population variance is not known

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Business Statistics A Decision Making Approach

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