An auto manufacturer claims that the variance of the gas mileages in a model of hybrid vehicle

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An auto manufacturer claims that the variance of the gas mileages in a model of hybrid vehicle is 0.16. A random sample of 30 vehicles has a variance of 0.26. At α = 0.05, is there enough evidence to reject the claim?

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Elementary Statistics Picturing The World

ISBN: 9780137493302

8th Edition

Authors: Ron Larson

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Question Posted: May 29, 2024 02:00 AM

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An auto manufacturer claims that the variance of the gas mileages in a model of hybrid vehicle

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Elementary Statistics Picturing The World

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