Answer
C.I = 334.33 to 379.67
Work Step by Step
For 95% confidence interval, we have z = 1.282.
Upper Bound = 357 + (1.282)(17.68) = 379.67
Lower Bound = 357 - (1.282)(17.68) = 334.33
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: 19.25
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