Answer
$χ2_{0.95} = 10.117$
$χ2_{0.05} = 30.114$
Work Step by Step
n = 20, df = n-1 = 19, Confidence level 90%
α = 1 - 0.90 = 0.10
α/2 = 0.05, 1 - α/2 = 0.95
$χ2_{1-α/2} = χ2_{0.95} = 10.117$
$χ2_{α/2} = χ2_{0.05} = 30.114$
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 9 - Section 9.3 - Assess Your Understanding - Vocabulary and Skill Building - Page 459: 5
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