A clinical trial is run to assess the effects of different formsof regular exercise on HDL levels in persons between the ages of 18and 29. Participants in the study are randomly assigned to one ofthree exercise groups - Weight training, Aerobic exercise, orStretching/Yoga – and instructed to follow the program for 8 weeks.Their HDL levels are measured after 8 weeks and are summarizedbelow. Weight Training Aerobic Exercise Stretching/Yoga 48 38 56 4941 57 51 42 60 53 37 55 45 39 58 47 44 64 54 43 61 49 42 62 50 3660 47 34 56 48 33 55 45 35 59 44 38 61 55 40 62 52 34 63 55 32 6750 35 64 Is there a significant difference in mean HDL levels amongthe exercise groups? Run the test at a 5% level of significance.(10 points) a) Hypotheses (1 point) HO: ï1= ï2= ï3 vs. HA : Atleast 1ï is different b) Summary statstics (2 points) GroupExercise Group N Mean Std Dev 1 Weight Training 17 49.5294 3.4481 2Aerobic Exercise 17 37.8235 3.7289 3 Stretching/Yoga 17 60 3.5 c)MSB (1 point) MSB= d) MSW (1 point) MSW= e) Compute F-stat (3points) F-stat= f) P-value (1 point) g) Conclusion (1 point)(circleone ) Accept H0 Reject H0
