Answer
More measurements.
Work Step by Step
If the sample is larger, then we will have more information about the population. Thus the differences will be more pronounced, thus the power will increase. Thus then we will require more measurements.
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 18 - Inference in Practice - Apply Your Knowledge - Page 430: 18.15a
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