in the past, the mean running time for a certain type of flashlight battery has been

9.8hours. The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has increased as a result. The hypotheses are shown below. Identify the Type I error.

H0: =9.8 hours

Ha: >9.8 hours

A.

Reject the claim that the mean running time is

9.8

hours when actually the mean running time is

greaterthan9.8hours.

B.

Fail to reject the claim that the mean running time is

9.8

hours when actually the mean running time is

9.8hours.

C.

Reject the claim that the mean running time is

9.8

hours when actually the mean running time is

9.8hours.

D.

Fail to reject the claim that the mean running time is

9.8

hours when actually the mean running time is greater than

9.8hours.