5. {20 pts) To make a subassembly requires processing on a Erasmtion serial line, thus, parts are processed at station 1 and station 2 in sequence. Assume that the time to complete the work at stations I and 2 is variable and follows the probability distribution . 'vcn below. ____ a. What is the probability that the total time to complete the task at both stations is less than 8 minutes? b. What is the average time to complete a subassembly? c. What is the probability that the time to complete a subassemhly is greater than the average time to complete a subassembly? d. What is the probability that B of the next 10 subasscmblies will complete in less than 8 minutes? e. Is it a good idea to set the standard time for this process to be 8 minutes? Why or whyr not