# A study compared different psychological therapies for teenage girls suffering from anorexia. The study employed randomization in assigning girls to one of three therapies, only one of which is considered in thisexample. Each girl's weight was measured before and after a period of therapy. The variable of interest was the weight change, defined as weight at the end of the study minus weight at the beginning of the study. Theweight change was positive if the girl gained weight and negative if she lost weight. For each of 17 girls who received the family therapy, the changes in weight were the following.11 11 6 815-4 -2 723-7 -3 12 12 85611Find x, s, and se.х 3(Round to two decimal places as needed.)(Round to two decimal places as needed.)S =(Round to three decimal places as needed.)se=

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