Elementary Statistics: Picturing the World (6th Edition)

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

Chapter 7 - Hypothesis Testing with One Sample - Section 7.1 Introduction to Hypothesis Testing - Exercises - Page 359: 12

Answer

The claim is that mean is less than 128. It's alternative claim is: the mean is greater than or equal to 128 Since this claim contains a strict less than sign, we have: $H_{a} = μ \lt 128$ $H_{o} = μ \geq 128$

Work Step by Step

As given above
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