Answer
1. A random sample of differences is selected from the target population of differences.
2. The population of differences has a distribution that is approximately normal
Work Step by Step
Given above
Statistics (12th Edition)
by McClave, James T.; Sincich, Terry T.
Published by
Pearson
ISBN 10:
0321755936
ISBN 13:
978-0-32175-593-3
Chapter 9 - Inferences Based on Two Samples - Exercises 9.30 - 9.50 - Learning the Mechanics - Page 436: 9.36d
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