McGraw-Hill Connect Math ALEKS Weight gain of Athletes A researcher wishes to see whether there is any difference in the weight gains of athletes following one of three special diets. Athletes are randomly assigned to three groups and placed on the diet for 6 weeks. The weight gains (in pounds) are shown here. Use a = 0.01 to test the differences between the pairs of means. Assume the variables are normally distributed, samples are Independent, and the population variances are equal. Diet A Diet B Diet C A 10 ola 12 13 X1 = 5.5 X, = 10.5 X, = 5.75 $3 = 1.67 $5 = 3.5 $2 =6.92 Send data to Excel Part: 0 / 4 Part 1 of 4 (a) Calculate the within-group variance s, . Round the answer to at least two decimal places. $2 =