Answered>Order 3388

For the given hypothesis test, explain the meaning of a Type I error, a Type II error, or a correct decision as specified.

In the past, the mean running time for a certain type of flashlight battery has been 8.5 hours.  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:

 H0: ? = 8.5 hours

 Ha: ? > 8.5 hours

Explain the meaning of a Type I error.

a)Concluding that ? = 8.5 hours when in fact ? > 8.5 hours

b)Concluding that ? < 8.5 hours when in fact ? > 8.5 hours

c)Concluding that ? > 8.5 hours when in fact ? > 8.5 hours

d)Concluding that ? > 8.5 hours when in fact ? = 8.5 hours