97.5
(Left tail would be 2.5)
A two-tailed test is conducted at the 5% significance level. What is the right tail percentile required to reject the null hypothesis?
2 answers
In the past, the mean running time for a certain type of flashlight battery has been 8.0 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:
2 answers