Why do we modify the formula for calculating standard deviation when using t tests (and divide by

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Why do we modify the formula for calculating standard deviation when using t tests (and divide by N − 1)?

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Essentials Of Statistics For The Behavioral Sciences

ISBN: 9781464107771

3rd Edition

Authors: Susan A. Nolan

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Question Posted: Apr 25, 2018 05:51 AM

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Why do we modify the formula for calculating standard deviation when using t tests (and divide by

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To conduct a t test we use the sample data to estimate va...View the full answer

Essentials Of Statistics For The Behavioral Sciences

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