Answer
Required confidence interval is 288 +- 1.96 x 4.167 = 288 +- 8.167
Work Step by Step
Required confidence interval is 288 +- 1.96 x 4.167 = 288 +- 8.167
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 16 - Confidence Intervals: The Basics - Check Your Skills - Page 387: 16.16
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