Basic Statistics: Tales of Distributions 10th Edition

Published by Cengage Learning
ISBN 10: 0-49580-891-1
ISBN 13: 978-0-49580-891-6

Chapter 8 - Samples, Sampling Distributions, and Confidence Intervals - Problems: 8.20

Answer

We must determine the number of degrees of freedom (df) in order to know which t distribution to use.

Work Step by Step

The formula is df=N - 1
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