1) In towns A,B,C,D,and E the prevalence of appendectomies is 2.1%, 2.9%, 3.1%, 3.8%, and 3.9%. i) Calculate the coefficient of variation for these 5 towns. (10 points) ii) According to Phelps is there agreement among surgeons on the marginal benefit of appendectomies across these towns. Explain. (5 points) iii) Town F is added to the study and has a prevalence of appendectomies of 3.2%. Calculate the coefficient of variation for these 6 towns. (10 points) iv) Does this change your answer to ii) above? (5 points)