Statistics for the Life Sciences (5th Edition)

Published by Pearson
ISBN 10: 0-32198-958-9
ISBN 13: 978-0-32198-958-1

Chapter 4 - The Normal Distribution - Exercises 4.3.1 - 4.3.17 - Page 132: 4.3.2

Answer

(a) 1.28 (b) -1.28

Work Step by Step

Using the Standard Normal Cumulative Probability Table we can find (a) by locating the closest value to 0.9 which is 1.28 and we can find (b) by locating the closest value to 0.1 which is -1.28.
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