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 this example. 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. The weight 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 8 15 -4 -2 7 23 -7 -3 12 12 8 5 6 11 Find 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=

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 this example. 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. The weight 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 8 15 -4 -2 7 23 -7 -3 12 12 8 5 6 11 Find 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=

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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