Answer
Stem plot of the data is appended below. The plot suggests that the data is heavily skewed, hence we cannot use the t confidence interval for this data.
Work Step by Step
Create a Stem plot in minitab from graphs menu.
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 20 - Inference about a Population Mean - Apply Your Knowledge - Page 472: 20.13
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