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 sixmonths, 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 meanAfter six months, their mean weight loss wasdifference in weight losses. Let H? denote the mean weight loss of the group with daily exercise. Use tables to find the critical value and round the answers tothe nearest integer.A95% confidence interval for the difference in the mean difference in weight loss, in pounds, is]