Statistics: Informed Decisions Using Data (4th Edition)

by Sullivan III, Michael

Published by Pearson

ISBN 10: 0321757270

ISBN 13: 978-0-32175-727-2

Chapter 10 - Section 10.2 - Assess Your Understanding - Vocabulary and Skill Building - Page 493: 5

Answer

z = -1.28

Work Step by Step

Here α = 0.1 Since the test is left tailed, we have: $P(Z < z_{α}) = 0.1$ Using Table V of the book, we have: z = -1.28

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