Elementary Statistics (12th Edition)

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

Chapter 8 - Hypothesis Testing - Review - Review Exercises: 8

Answer

a) See below. b) See below.

Work Step by Step

a) Type 1 error: the probability of rejecting a true null hypothesis. Type 2 error: the probability of failing to reject a false null hypothesis b) Type 1: We reject that the sample has a mean of 25, when in fact it does have a mean of 25. Type 2: We don't reject that the sample has a mean of 25, when in fact it doesn't have a mean of 25.
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