Answer
The value of 5 will be at the middle of the graph as explained in part (b). $x̅1 - x̅2 = 70 - 50 = 20$. This value contradicts with the Null hypothesis that x̅1 - x̅2 = 5
Work Step by Step
As 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 9.1 - 9.29 - Learning the Mechanics - Page 423: 9.10c
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