ABC Automobile Company claims that its new sedan the Libra w

ABC Automobile Company claims that its new sedan, the Libra, will average better than 30 miles per gallon in the city. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms.

A) There is not sufficient evidence to support the claim that the mean is less than 30 miles per gallon.

B) There is sufficient evidence to support the claim that the mean is greater than 30 miles per gallon.

C) There is not sufficient evidence to support the claim that the mean is greater than 30 miles per gallon.

D) There is sufficient evidence to support the claim that the mean is less than 30 miles per gallon.

Solution

B) There is sufficient evidence to support the claim that the mean is greater than 30 miles per gallon.