A Medical Researcher Wishes to Try Three Different Techniques to Lower

Essay

A medical researcher wishes to try three different techniques to lower cholesterol levels of patients with highcholesterol levels. The subjects are randomly selected and assigned to one of three groups. Group 1 is givenmedication, Group 2 is given an exercise program, and Group 3 is assigned a diet program. At the end of sixweeks, each subjectʹs cholesterol level is recorded. Test the hypothesis that there is no difference among themeans. Use α = 0.05. $$\begin{array} { c c c } \hline \text { Group 1 }&\text { Group 2 }&\text { Group 3 } \\ \hline 9 & 8 & 6 \\12 & 5 & 12 \\11 & 2 & 4 \\15 & 3 & 8 \\13 & 4 & 9 \\8 & 0 & 4 \\\hline\end{array}$$