Drive Through Service: When investigating times required for drive-through service, the following results (in seconds) are obtained (based on QSR Drive-Thru Time Study) Mcdonald's: 287 128 92 267 176 240 192 118 153 254 193 136 Jack in the Box: 190 229 74 377 300 481 428 255 328 270 109 109 Questions: a) Compute the following measures (mean, median, standard deviation) for EACH data set. Round to one decimal place. WORK is not needed. Use your graphing calculator. b) Which of the two fast-food giants appears to have a faster service? Explain your answer. c) Which restaurant has service times that are more variable and explain why. d) If you were the manager of the restaurant with more variable service times, discuss a way (or ways) to improve the service