Nutrition education programs, which teach clients how to lose weight, reduce cholesterol intake, or reduce fat intake through better eating patterns,...

Nutrition education programs, which teach clients how to lose weight, reduce cholesterol intake, or reduce fat intake through better eating patterns, have been growing in popularity. The nurse in charge of one such program at a local hospital wanted to know whether the programs actually work to improve health measures. A random sample was drawn of 33 clients who attended a nutrition education program. The study recorded the following health measures: weight, cholesterol levels, total dietary fat intake per average day, total dietary cholesterol intake per average day, and percent of daily calories from fat. These data were gathered both before and 3 months after the program. The researcher also determined the clients' genders, ages, and heights. The data are stored in the following way:

               Column A: Gender (1 = female; 2 = male)

               Column B: Age

               Column C: Height (in meters)

               Columns D and E: Weight, before and after (in pounds)

               Columns F and G: Cholesterol Level, before and after

               Columns H and I: Total Dietary Fat Intake per average day, before and after (in grams)

               Columns J and K: Dietary Cholesterol Intake per average day, before and after (in milligrams)

               Columns L and M: Percent Daily Calories from fat, before and after

I have to answer a series of questions concerning the case above. I am trying to figure out which statistical test to run based on the questions below.

a) In terms of each of the health measures (cholesterol level, calories from fat), is the program a success?

b) Does age impact the amount of reduction in each measure (cholesterol level, calories from fat)?

c) Does the amount of reduction for each measure (cholesterol level, calories from fat) differ between males and females?