Answer
Figure a: P = 0.3050
Figure b: P = 0.0089
Work Step by Step
Using standard normal table, we have:
P(z < -0.51) = 0.3050 and
P(z < -2.37) = 0.0089
Moreover, larger P value corresponds to the larger area
Elementary Statistics: Picturing the World (6th Edition)
by Larson, Ron; Farber, Betsy
Published by
Pearson
ISBN 10:
0321911210
ISBN 13:
978-0-32191-121-6
Chapter 7 - Hypothesis Testing with One Sample - Section 7.2 Hypothesis Testing for the Mean - Exercises - Page 373: 15
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