5. End Result Hospital wants to assess diff erent approaches to the control of cholesterol. Fiftythree patients are randomly assigned to four groups: control, diet, exercise, and diet and exercise. Is there any diff erence between the four treatment options? What is your treatment recommendation?

Control Diet Exercise Diet and Exercise 247.2 234.4 224.1 173.0 172.2 167.0 195.1 131.0 188.4 204.2 145.2 185.0 181.6 162.6 142.2 150.7 219.4 164.9 238.6 163.2 221.8 148.5 192.3 152.1 188.0 236.0 174.3 128.6 153.4 182.7 241.2 140.3 165.8 158.7 226.2 210.7 226.4 174.6 193.8 162.8 203.9 193.5 162.2 191.1 248.1 217.5 156.5 132.0 161.5 220.6 192.8 159.5 194.7