uestion 2: Fifteen adult males between the ages of 35 and 50' participated in a study:I to evaluate the effect of diet and exercise on blood cholesterol levels. The total cholesterol was measured in each subject initiallyr and then 5 months after participating in an aerobic exercise program and switching to a low-fat diet, as shown in the table below. Variant: E \"II-m mun-M {a} Calculate the (before and after) sample mean and standard deviation; [20%] {b} Calculate other relevant sample statistics. i.e. median. 131 and 3"'1 quartiles, range and inter-quartile range: [40%] {c} Construct a comparative box-plot for \"before\" and \"after" cholesterol data and discuss your observations; [20%] {d} Use tally charts l counts to calculate frequencies {use 5 bins} and construct histograms for the 2 sets of data