The average miles on a tank of gas for the FordExplorer is 300 miles with a standard deviation of 22miles. A consumer group feels the average is actuallylower. They survey 40 vehicles and find the averagemiles per tank is 290 miles. At $alpha$ = 0.05, test theconsumer groups claim that the miles per tank isactually lower than 300 miles.

TESTS OF SIGNIFICANCE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

The average miles on a tank of gas for the FordExplorer is 300 miles with a standard deviation of 22miles. A consumer group feels the average is actuallylower. They survey 40 vehicles and find the averagemiles per tank is 290 miles. At

A	There is enough evidence to reject the claim
B	There is not enough evidence to reject the claim
C	There is enough evidence to support the claim
D	There is not enough evidence to support the claim

Explanation:

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TESTS OF SIGNIFICANCE