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 361: 46

Answer

The claim represents the "Null hypothesis" (a) There is enough evidence to reject the manufacturer's claim that the standard deviation for the gas mileage of its models is 3.9 miles per gallon (b) There is not enough evidence to reject the manufacturer's claim that the standard deviation for the gas mileage of its models is 3.9 miles per gallon

Work Step by Step

As given above
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