Assume that a hypothesis test of the given claim will be conducted. Identify the type I or type II error for the test. A consumer advocacy group claims that the mean mileage for the Carter Motor Company's new sedan is
Less than 32 miles per gallon. Identify the type I error for the test.
A) Fail to reject the claim that the mean is equal to 32 miles per gallon when it is actually greater than 32 miles per gallon.
B) Reject the claim that the mean is equal to 32 miles per gallon when it is actually less than 32 miles per gallon.
C) Reject the claim that the mean is equal to 32 miles per gallon when it is actually 32 miles per gallon.
D) Fail to reject the claim that the mean is equal to 32 miles per gallon when it is actually less than 32 miles per gallon.

Question

Quizplus · Accepted Answer

A Type I error occurs when we reject a true null hypothesis. In this case, the null hypothesis is that the mean mileage is equal to 32 miles per gallon. Therefore, rejecting this claim when it is actually true is a Type I error.

Assume That a Hypothesis Test of the Given Claim Will