Answer
Answer: P( z < -2.575) = 0.005
Work Step by Step
z = - 2.575 is between z = -2.57 and z= -2.58
P( z < -2.57) = 0.0051
P( z < -2.58) = 0.0049
Therefore, P( z < -2.575) = (0.0051 + 0.0049)/2 = 0.005
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 5 - Normal Probability Distributions - Section 5.1 Introduction to Normal Distributions and the Standard Normal Distribution - Exercises - Page 243: 25
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