A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 1| and 29. Participants in the study are randomly assigned to one of three exercise groups (Weight training, Aerobic exercise or StretchingiYoga} and instructed to follow the program for 8 weeks. Their HDL levels are measured after 3 weeks and are summarized below. Exercise Group Weight Training Aerobic Exercise Stretchinngoga Is there a signicant difference in mean HDL levels among the exercise groups? Run the test at a 5% level of signicance. HINT: SSerror = 7286.5.