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. Compute a t-statistic for independent groups:

mean group 1 = 79.1 SD²₁ = 42.1 n₁ = 25

mean group 2 = 74.1 SD²₂ = 39.7 n₂ = 25

What are the degrees of freedom and the value of t ?

Using =0.05 for a two-tailed test, is this t statistic significant?

Show your calculations or show stat crunch or excel.