Researchers are interested in the efficacy of a new after school program at redu

Question

Researchers are interested in the efficacy of a new after school program at reducing weight loss in children Suppose the following table illustrates the BMI (kg/m2) for a group of children enroilled in the new program, and a group of children enrolled in the current program: BMI (Kg/m2) Current Program BMI (kg/m2) New Program 19.1 21.4 22.4 27.6 26.5 25.4 24.8 19.1 19.5 20.1 22.4 21.7 23.0 29.4 A. Calculate the mean, median, and standard deviation BMI for each group of children. B. Compare the two groups based on the statistics presented above

Explanation / Answer

A] Descriptive Statistics: BMI current program, BMI new program

Variable Mean StDev Median
BMI current program 23.89 3.03 24.80   
BMI new program 22.17 3.51 21.70   

B] mean of group 1 is greater than mean of group 2

SD of group 1 is less than SD group 2

median of group 1 greater than median of group 2

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