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 10 - Section 10.1 - Assess Your Understanding - Vocabulary and Skill Building - Page 483: 11

Answer

Two-tailed hypothesis test. The standard deviation is being measured.

Work Step by Step

In the alternative hypothesis, the standard deviation is not equal to 4.2, hence the test is two tailed.

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