Elementary Statistics: Picturing the World (6th Edition)

Published by Pearson
ISBN 10: 0321911210
ISBN 13: 978-0-32191-121-6

Chapter 7 - Hypothesis Testing with One Sample - Section 7.1 Introduction to Hypothesis Testing - Exercises - Page 359: 20

Answer

The alternative hypothesis $H_a:μ\gt2$ matches with (a); the null hypothesis is $H_o:μ\leq2$. See the attached graph.

Work Step by Step

The alternative hypothesis $H_a:μ\gt2$ means that μ takes on all values greater than 2, and that is represented by graph (a). The null hypothesis is the opposite: $H_o:μ\leq2$. See the attached graph above.
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