Answer
$H_{a}$: Intrusion Occurs
Work Step by Step
Alternate hypothesis contradicts the Null hypothesis that no intrusion occurs
Statistics (12th Edition)
by McClave, James T.; Sincich, Terry T.
Published by
Pearson
ISBN 10:
0321755936
ISBN 13:
978-0-32175-593-3
Chapter 8 - Inferences Based on a Single Sample - Exercises 8.1 - 8.19 - Applying the Concepts - Advanced - Page 361: 8.19b
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