A medical researcher wishes to try three different techniques to lower blood pressure of patients with

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 F0 to test the claim that

there is no difference among the means. Use = 0.05.

Group 1 Group 2 Group 3

11 8 8

12 3 12

13 2 4

15 5 4

9 4 9

8 0 6