Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 8 - Hypothesis Testing - 8-2 Basics of Hypothesis Testing - Basic Skills and Concepts: 7

Answer

a) mean at most 76 b) Null hypothesis:mean=76, alternative hypothesis: mean>76.

Work Step by Step

a) The claim says that the mean is smaller at most 76. b) The null hypothesis says that the mean is equal to 76, whilst the alternative hypothesis says that the claim is false, hence the mean is more than 76.
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