1.Solve the given problem using the Stepwise Method in testing hypothesis. Use a one-tailed test. Two groups of experimental rats were injected with tranquilizer at 1.0 mg and 1.5 mg dose...

1.Solve the given problem using the Stepwise Method in testing hypothesis. Use a one-tailed test.

Two groups of experimental rats were injected with tranquilizer at 1.0 mg and 1.5 mg dose respectively. the time given in seconds  that took them  to  fall asleep is hereby given. Use  the t test for independent samples at .01 to test the Ho that the difference in dosage has no effect on the length of time it took them to fall asleep.

1.0 mg dose                     1.5 mg dose

9.8                                    12.0

13.2                                   7.4

11.2                                   9.8

9.5                                     11.5

13.0                                   13.0

12.1                                    12.5

9.8                                      9.8

12.3                                    10.5

7.9                                       13.5

10.2

9.7