Adietician wants to see if there is any difference in the effectiveness of three diets. eighteen people, comprising a sample, were randomly assigned to the three diets. below you are given the total amount of weight lost in a month by each person. diet a diet b diet c14 12 2518 10 3220 22 1812 12 1420 16 1718 12 14what would you advise the dietician about the effectiveness of the three diets? use a .05 level of significance.