2) Dr. Buff wants to know how consuming whey protein shakes and weight lifting r

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2) Dr. Buff wants to know how consuming whey protein shakes and weight lifting regimens affect total body fat percentages. Dr. Buff decides to design an experiment where participants get assigned to one of two protein shake conditions (a whey protein shake a day/no whey protein shake a day) and one of three weight lifting regimens (no weight lifting/weight lifting 2 times a week/weight lifting 5 times a week). Dr. Buff randomly assigns a sample of 150 individuals to a whey protein condition and a weight lifting regimen condition, for a total of six groups (2x3). Dr. Buff measures the total body fat percentage of each participant before and at the end of the experiment (after 6 weeks) to calculate a "change in body fat percentage" score (time 2-time 1). What type of test should Dr. Buff use to determine if there are significant differences in muscle mass change based on the whey protein or weight lifting interventions? (One way ANOVA, Repeated measures ANOVA, Factorial ANOVA) el 3) You are given the following information about a study in a journal article that used a One way ANOVA: F(S, 350). Answer the two questions below based on this information. a. How many groups were in this study? (k) b. How many total participants were there in the study? (N)

Explanation / Answer

2) Dr. Buff wants to know how consuming whey protein shakes and weight lifting regimens affect total body fat percentages. Dr. Buff decides to design an experiment where participants get assigned to one of two protein shake conditions (a whey protein shake a day/no whey protein shake a day) and one of three weight lifting regimens (no weight lifting/weight lifting 2 times a week/weight lifting 5 times a week). Dr. Buff randomly assigns a sample of 150 individuals to a whey protein condition and a weight lifting regimen condition, for a total of six groups (2x3). Dr. Buff measures the total body fat percentage of each participant before and at the end of the experiment (after 6 weeks) to calculate a "change in body fat percentage" score (time 2-time 1). What type of test should Dr. Buff use to determine if there are significant differences in muscle mass change based on the whey protein or weight lifting interventions? (One way ANOVA, Repeated measures ANOVA, Factorial ANOVA) el 3) You are given the following information about a study in a journal article that used a One way ANOVA: F(S, 350). Answer the two questions below based on this information. a. How many groups were in this study? (k) b. How many total participants were there in the study? (N)

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