2. A study of 78 people using one of three diets weighed people at baseline, before the diet started (pre. weight), and after 6 weeks on the diet (weight6weeks). Data summaries appear below. a. What is the median pre. weight and the median weight6weeks? 72 f. P. not 68.95 for weight 6 weak b. What is the change in the average weight from the baseline to six weeks? Did the average go up or down over that time? 72. 3 25/4-68 .68071 = 3.85 the average went down c. What is the coefficient of variation (CV) at six weeks? 8. 9245 -68. 681 X 100= 12.99x d. What is the interquartile range at baseline and the interquartile range at six weeks? 3 88 - 1581 = 30 20 for loulim 83. 2 - 54. 1 = 29.1 six weeks pre . weight Percentiles Smallest 58 58 59 58 10% 61 58 Obs 78 25% 66 59 Sum of Wgt. 78 72 Mean 72 . 52564 Largest Std. Dev. 8 . 723344 75% 78 87 90% 84 38 Variance 76 . 09674 95% 87 8 8 Skewness . 502464 99% 103 103 Kurtosis 3. 479624 Diet weight6weeks Percentiles Smallest 37. 825 541 53 53 55 54 54. 0S 108 57.3 54.2 Obs 78 55 Sum of Wgt. 78 25% 61.8 50% 68.95 Mean 68. 68077 Largest Std. Dev. 8 . 924504 75% 73.9 81.9 90% 80.2 81.9 ( Variance 79 . 64677 81.9 Skewness 6601101 95% 84.5 998 103 103 Kurtosis 4.226514