The following list of jobs in a critical department includes estimates of their required times: DAYS TO DELIVERY REQUIRED TIME (DAYS) PROMISE 5 6 2 16 15 -5 (late) 8 -11(late) 13 CABCDEFGI JOB HNMON89 14 12 3 10 2 The mean flow time a. Use the shortest operation time rule to schedule these jobs. What is the mean flow time? (Round your answer to 3 decimal places.) SLACK 1 days The new mean flow time -12 4 12 -15 6 -19 4 b. The boss does not like the schedule in a. Jobs G and E must be done first, for obvious reasons. (They are already late.) Reschedule the jobs by assigning G and E first and second, respectively, and then assigning the remaining jobs using the shortest operation time rule. What is the new mean flow time? (Round your answer to 3 decimal places.) days

The following list of jobs in a critical department includes estimates of their required times: a. Use the shortest operation time rule to schedule these jobs. What is the mean flow time? (Round your answer to 3 decimal places.) b. The boss does not like the schedule in a. Jobs G and E must be done first, for obvious reasons. (They are already late.) Reschedule the jobs by assigning G and E first and second, respectively, and then assigning the remaining jobs using the shortest operation time rule. What is the new mean flow time? (Round your answer to 3 decimal places.)