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5.(18 points) A group of 10-year-old boys were first ascertained in a camp for diabetic boys. They had their weight measured at baseline and again when they returned to camp 1 year later. Each time, a serum sample was obtained from which hemoglobin Alc was made. The following table is the results: نادرا 36.3 1st visit 2nd visit ID no. weight HgbAlc weight Hgbald 1 40.5 9.9 45.5 8.4 2 43.2 11.3 47 9.2 3 10.4 42 9.6 4 30.8 7.4 35.3 8.1 5 29.9 9.8 33.2 7.9 6 39.7 8.5 46.1 7.7 7 36.9 37.8 7.7 8 36.4 7.8 37 8.4 9 34.5 7.8 34.3 9.6 10 35.2 5.7 38.4 6.5 11 43 7.4 48.6 12 38.4 6.5 42.7 7 13 42 7.1 48 7.4 14 34.1 8.9 8.1 15 43.5 9.3 51.4 7.4 FIGISURE 7.4 اور با اشاره 41.3 a. Use correlation method to assess the relationship between weight and HgbAlc at the initial visit? Perform the test and report a two-sided p-value. Use SPSS only. b. Compute nonparametric test between change in weight and change in HgbAlc, each over 1 year. Both By hand and SPSS. c. Use regression method to test if the HgbAlc changes have effect on weight changes and compare to the correlation method. Use both hand and SPSS.