Answer
.9328
Work Step by Step
Using a z-table, we find:
P(70% < p < 80%) = P(-1.83 < X < 1.83) = 1-2P(Z < -1.83) = 1 - 2(.0336) = .9328
The Basic Practice of Statistics 7th Edition
by Moore, David S.; Notz, William I.; Fligner, Michael A.
Published by
W. H. Freeman
ISBN 10:
146414253X
ISBN 13:
978-1-46414-253-6
Chapter 14 - Binomial Distributions - Chapter 14 Exercises - Page 342: 14.35b
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