An automotive manufacturer claims that the standard deviation for the gas mileage of its models is 3.9

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An automotive manufacturer claims that the standard deviation for the gas mileage of its models is 3.9 miles per gallon.

Determine whether the claim represents the null hypothesis or the alternative hypothesis. If a hypothesis test is performed, how should you interpret a decision that

(a) Rejects the null hypothesis?

(b) Fails to reject the null hypothesis?

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Elementary Statistics Picturing The World

ISBN: 9780321911216

6th Edition

Authors: Ron Larson, Betsy Farber

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Question Posted: Nov 24, 2015 07:59 AM

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An automotive manufacturer claims that the standard deviation for the gas mileage of its models is 3.9

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Alternative hypothesis a There is enough evidence to reject the auto...View the full answer

Elementary Statistics Picturing The World

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