est: 10-1 MyStatLab: Final Exam Submit Test This Question: 9 pts 37 of 37 (36 co

Question

est: 10-1 MyStatLab: Final Exam Submit Test This Question: 9 pts 37 of 37 (36 complete) This Tost: 320 pts possible in the past, the the mean nunning time has increased as a result. The hypotheses are shown below Identily the Type e mean nunning time for a certain type of Mashlight battery has been 9 hours The mandacturer hes introduced a change in the production method and wants to perform a hypothesis test to determine wheher : > 9 hours OA. Rept te B. aim hat mean nmng tme is 9hours when actaly he mean nming time ipe lar than 9 hours, F.1 to mind the claim that the "en runngine . 9 tours when aduaity he mean nmng Ere-9han O C. Reject the claim that the mean nunning time is 9 hours when actualy the mean unning time is 9 hours OD. Fal to neject the ciaim that the mean unming Sme is 9 hours when actually the mean nunning time is greater then 9 hours

Explanation / Answer

Type I error is rejecting null hypothesis when it is actually true.

Here the null hypothesis is the mean running time is 9 hours.

Type I error is rejecting the claim that the mean running time is 9 hours when actually the mean running time is 9 hours.

option C is correct.

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