Use the Stepwise Method 1.5 mg. dose (X,) 1.0 mg. dose Two groups of experimental rats were injected with tranquilizer at 1.0 mg. and 1.5mg. 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 null hypothesis that the difference in dosage has no effect on the length of time it took them to fall asleep. (X,). 8.8 11.0 14.2 9.4 10.2 9.2 7.5 10.5 12.0 13.6 10.1 10.5 8.8 9.7 12.2 10.4 7.6 13.2 10.1 8.7

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Use the Stepwise Method
1.0 mg. dose
(X,)
8.8
1.5 mg. dose
(X,).
11.0
Two groups of experimental rats were
injected with tranquilizer at 1.0 mg.
and 1.5mg. 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 null hypothesis that the
difference in dosage has no effect on
the length of time it took them to fall
asleep.
14.2
9.4
10.2
9.2
7.5
10.5
12.0
13.6
10.1
10.5
8.8
9.7
12.2
10.4
7.6
13.2
10.1
8.7
30
Transcribed Image Text:Use the Stepwise Method 1.0 mg. dose (X,) 8.8 1.5 mg. dose (X,). 11.0 Two groups of experimental rats were injected with tranquilizer at 1.0 mg. and 1.5mg. 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 null hypothesis that the difference in dosage has no effect on the length of time it took them to fall asleep. 14.2 9.4 10.2 9.2 7.5 10.5 12.0 13.6 10.1 10.5 8.8 9.7 12.2 10.4 7.6 13.2 10.1 8.7 30
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