Everitt , as reported in Hand et al. ( 1994 ). presented data on the amount of weight ( in pounds ) gained by* 29 anorexic girls under the condition of Cognitive Behavior Therapy . The research question is whether or not there is weight gain for anorexic girls under the condition of Cognitive Behavior Therapy . The data* follow .` ID| Weight Gain* 1. 00 1.70 2.00 . 70 3.00 - 10 4.00 -. 70 5.00 - 3.50 6.00 14.90 7.00 3.50 8.00 17.10 9.0.0 - 7. 60 10.00 1. 60 11.00 1 1.70 12.00 6.10 13.00 1. 10 14.00 -4.00 15.00 20.90 16.00 - 9.10 17.00 2.10 18.00 -1. 40 19.00 1.40 20.00 - 30 21.00 3.70 22.00 -. 80 23.00 2.40 24.00 12.60 25.00 1.90 26.00 3.90 27.00 . 10 28.00 15.40 29.00 .. 70 Start with a paragraph to introduce and describe the study . Put your research hypotheses here Using Excel , produce graphs and descriptive statistics of the weight differences ( Minimum .` Maximum , Mean , SO, I, and histogram and / or boxplat ! . Write a paragraph to describe the data based upon your graphs and statistics ( e.g., outlier ? skewness ?) .` Perform a one - sample I- test regarding your research question . Report your test result , confidence interval for weight gain , P- value , and conclusions in a paragraph .`