Why don't we need to know the population standard deviation when performing a test about a population

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Why don't we need to know the population standard deviation when performing a test about a population proportion?

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Elementary Statisitcs

ISBN: 978-1259345296

2nd edition

Authors: Barry Monk

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Question Posted: Sep 23, 2015 05:09 AM

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Why don't we need to know the population standard deviation when performing a test about a population

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Whereas the test statistic for a hypothesis test for a populat...View the full answer

Elementary Statisitcs

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