Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321755936
ISBN 13: 978-0-32175-593-3

Chapter 8 - Inferences Based on a Single Sample - Exercises 8.57 - 8.76 - Learning the Mechanics - Page 377: 8.61e

Answer

Rejection region = |t| > 1.729

Work Step by Step

df = n-1 = 20-1 = 19 $t_{α} = t_{0.05} = 1.729$ Hence Rejection region = |t| > 1.729
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