PIODiem List Next Problem (5 points) 24 girls in the 9th and 10th grades were put on an ultra-heavy rope-jumping program. Someone thought that such a program would increase their speed in the 40-yard dash. let D equal the difference in time to run the 40-yard dash - the 'before-program time" minus the "after- program time". Assume that the distribution of D is approximately N(UD, ) The following data give the difference in time that it took each girl to run the 40-yard dash, with positive numbers indicating a faster time after the program 0.2 0 0 17 0.4 0.07 0.09 0.13 -0.12 -0.32 0.04 0.2 0.2 0.04 0.2 0.07 0.03 -0.03 -0.03 0.08 0.6 0.34 -0.34 0.6 0.03 Find the following and then calculate a 99% confidence interval for D ID = SD critical value =