Answer
.9177
Work Step by Step
The z value is:
z = $\frac{x-u}{o/\sqrt n}$ = $\frac{234.5 - 500(.5)}{\sqrt 500(.5)(1-.5)}$ = -1.39
P = P(X > 234.5) = P(Z > -1.39) = .9177
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 19 - From Data Production to Inference: Part III Review - Supplementary Exercises - Page 452: 19.63b
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