Answer
$±t_{0.025} = ±2.179$
Work Step by Step
α = 0.05, df = 12
Using Table-VI, we have:
$t_{0.025} = 2.179$
Since the test is two-tailed:
$±t_{0.025} = ±2.179$
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: 1c
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