A nutritionist wants to estimate the mean amount of weight loss on a diet program for males. He randomly selects 40 men deemed to be overweight at the start of the 4-month program. Blow are the amounts of weight loss by each man. Construct a 99% confidence interval for the mean weight loss for all overweight men using this diet program.

Weight Loss (pounds) 17 13 13 17 15 8 20 12 19 12 16 20 9 12 22 13 19 17 23 14 19 10 12 11 19 11 14 13 20 2 14 un 18 14 17 Lower Confidence Limit = Rou