The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 146414253X
ISBN 13: 978-1-46414-253-6

Chapter 3 - The Normal Distributions - Apply Your Knowledge - Page 90: 3.10d

Answer

.7029

Work Step by Step

To solve, find the areas in the table that correspond with both z scores and subtract from each other. To find the area for 1.45: Looking at the positive z values in the table identify the value 1.4 on the column coming down on the left side of the table. Using that row, look for the number that matches up with the .05 column. To find the area for -0.76: Looking at the negative z values in the table identify the value -0.7 on the column coming down on the left side of the table. Using that row, look for the number that matches up with the .06 column. Once you find both areas, subtract the smallest from the largest: .9265 - .2236 = .7029
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