I will be posing a new problem since I don't have all the data for the last one I sent in.

A new weight-loss drug has been developed and randomized drug trial has been conducted. The drug trial participants have been divided into two groups consisting of seven people, group one equals the experimental group and group two is the placebo/control group. My assumption is that group one had more weight loss in total pounds than that of group 2. Determine the main difference in total pound loss between group 1 and group to buy constructing a 90% confidence interval. Group one has the following numbers 12, eight, six, nine, five, 11 and 7. sample equals 2.5634 and the mean equals 8.2857

Group to placebo has 14, 13, three, five, nine, 10, eight,. S=equals 3.9761 and the mean equals 8.8571. Please find the total pounds lost between group 1 and group two construct a 90% confidence interval and show the work.