5.00000 points QUESTION 5 1. Provide an appropriate response. A medical research

Question

5.00000 points QUESTION 5 1. Provide an appropriate response. A medical researcher wishes to try three different techniques to lower blood high blood pressure. The subjects are randomly selected and assigned to one of three groups. Group 1 is given medication, Group 2 is given an exercise program, and Group 3 is assigned a diet program. At the end of six weeks, each subject's blood pressure is recorded. Find the critical value Fo to test the dlaim that there is no difference among the means. Use -0.05. pressure of patients with Group 1 Group 2 Group 3 4 12 12 2 155 13 4 . 39.43 C 3.68 4.77 19.43

Explanation / Answer

In order to perform the ANOVA analysis on given data, we need to find the degrees of freedom of Between Groups and Within Groups.

Total df = 18 - 1 = 17
df between groups = 3 - 1 = 2
df within groups = total df - df between groups = 17 -2 = 15

F critical for alpha = 0.05 and df = 2,15
Fcritical = 3.6823

Excel function used: =F.INV.RT(0.05,2,15)

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