The following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Complete parts (a) through (d) below. Observation 1 2 3 5 6 3 A 793.2 791.3 791.1 791.3 790.6 794.3 B 802.5 789.5 796.8 787.9 791.5 790.6 . . . .. P-value = (Round to three decimal places as needed.) What is your conclusion regarding Ho? Ho- There sufficient evidence at the a = 0.01 level of significance to conclude that there is a difference in the measurements of velocity between device A and device B. (c) Construct a 99% confidence interval about the population mean difference. Compute the difference as device A minus device B. Interpret your results. The lower bound is The upper bound is (Round to two decimal places as needed.) Interpret the confidence interval. Choose the correct answer below. A. One can be 99% confident that the mean difference in measurement lies in the interval found above. O B. One can be 99% confident that the mean difference in measurement is 0. O C. One can be 1% confident that the mean difference in measurement lies in the interval found above. O D. One can be 99% confident that the mean difference in measurement is 0.01. d) Draw a boxplot of the differenced data. Does this visual evidence support the results obtained in part (b)