National UniversityBST 322 Suppose we wanted to test the hypothesis that a control group of cancer patients (Group 1) would report higher mean pain ratings than an experimental group receiving special massage treatments (Group 2)

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National UniversityBST 322

Suppose we wanted to test the hypothesis that a control group of cancer patients (Group 1) would report higher mean pain ratings than an experimental group receiving special massage treatments (Group 2). Use the following information.

mean group 1 = 78.5    s² = 42.1         n = 25

 

mean group 2 = 72.1    s² = 39.7         n =25

Compute a t-test for independent groups:

Using α=0.05 for a one-tailed test, is the t statistic significant?

Write one or two sentences (in plain English/non-statistical terms) that could be used to report the results obtained for the t-test.