Answer
(c) 182
Work Step by Step
$E = \frac{(1.645)(41)}{\sqrt n}$
Given the margin of error is 5:
$5 = \frac{(1.645)(41)}{\sqrt n}$
$\sqrt n = \frac{(1.645)(41)}{5}$
$\sqrt n = 13.489$
$n \approx 182$
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 - Test Yourself - Page 446: 19.29
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