Answer
P=0.9772, z=-1.645.
Work Step by Step
The P is the probability of the z-score being less than 2, hence:P=0.0228.The critical value is the z-score belonging to 0.05 to the left, hence z=-1.645.
Elementary Statistics (12th Edition)
by Triola, Mario F.
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 - Page 397: 18
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