Answer
(b).
Work Step by Step
$t=\frac{\overline{x}-\mu_0}{s/\sqrt n}=\frac{98-100}{3/\sqrt{9}}=-2$ Thus the answer is (b).
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 - Check Your Skills - Page 477: 20.18
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