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12. Suppose we wanted to test the hypothesis that a control group of cancer patients (Group...

12. 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: Remember: SD2 is the variance, which is the square of the standard deviation.

If mean group 1 = 82.1 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 α=0.05 for a two-tailed test, is this t statistic significant? Show your calculations

Write a short paragraph that could be used to report the results obtained for the t-test

What are the null and alternative hypotheses?

math   Statistics-And-Probability   
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Anse iven mean Degrees of reedos t105-2 83-1-74.1 fest latic 10.896+63.0436 D 6912 133 4 3 049769 4 is greates than o-os, e failed fo vefec

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