For Exercises 25 and 26, perform the indicated hypothesis test using the test. The summary statistics were taken from random samples that were drawn independently. Assume that and are known.
25. Test, at level of significance , whether > .
| Sample 1 | |||
| Sample 2 |
10.2.25
. . Reject if . . Since is , we reject . There is evidence at the level of significance that the population mean of Population 1 is greater than the population mean of Population 2.