Researchers in obesity wanled to compare the effectiveness of dieting with exerc

Question

Researchers in obesity wanled to compare the effectiveness of dieting with exercise against dieting without exercise Seventy-three patients were randomly divided into two groups. Group 1, composed of 35 patients, was put on a program of dieting with exercise. Group 2, composed of 38 patients, dieted only. The results for the weight loss, in pounds, after 2 months are summarized in the following boxplots. The top boxplot is for Group 1 and the bottom boxplot is for Group 2. Use the boxplots to compare the weight losses for the two groups, paying special attention to center and variation. 10 20 Choose the correct answer below The weight losses for the two groups are, on average, roughly the same. However, tere is less variation in the 0 B. Group 2 lost more weight, on average, than Group 1 O C. The weight losses for the two groups are, on average, roughly the same. However, there is less varia O D. The variation in weight loss between both groups is the same. The center of O A. tion in the weight losses of Group 1 than of Group 2 The center of Group 2 fals higher than Group 1

Explanation / Answer

Answer is ( D)

The variation in weight loss between both groups in the same. The center of group 2 falls higher than group 1.

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