Answer
$t_{0.02} = -2.189$
Work Step by Step
α = 0.02, df = 22-1 = 21
Since the mean is $\lt 80$, the test will be left tailed.
Using Table-VI for a left-tailed test, we have:
$t_{0.02} = -2.189$
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 10 - Section 10.3 - Assess Your Understanding - Skill Building - Page 502: 6b
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