Does this diet help? A group of 74 people enrolled in a weight-loss program that involved adhering to a special diet and to a

Question

Does this diet help? A group of 74 people enrolled in a weight-loss program that involved adhering to a special diet and to a daily exercise program. After six
months, their mean weight loss was 28 pounds, with a sample standard deviation of 9 pounds. A second group of 45 people went on the diet but didn't exercise.
14 pounds, with a sample standard deviation of 6 pounds. Construct a 95% confidence interval for the mean
After six months, their mean weight loss was
difference in weight losses. Let H₁ denote the mean weight loss of the group with daily exercise. Use tables to find the critical value and round the answers to
the nearest integer.
A
95% confidence interval for the difference in the mean difference in weight loss, in pounds, is
] < ₁ = 2₂ < [
X
5

Kunduz · Accepted Answer

Click to see the answer