A medical researcher wants to try three different techniques to lower cholesterol levels. 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 cholesterol level is recorded.
Group 1 Group 2 Group 3
13 2 12
12 2 12
11 5 4
15 3 8
9 4 9
8 0 6
State the requirements that must be satisfied in order to use the one-way ANOVA procedure.
#2 Find the critical F-value to test the hypothesis that there is no difference among the means. Use α = .05
#3 Find the test F statistic to test the hypothesis that there is no difference among the means. Use α = 0.05.
This solution gives the step by step method for ANOVA.