4. Assign trucks to routes so that can a. b. Minimize the total cost if the data are in costs. Maximize the total profit if the data are in profits. route A B C D 9 12 9 19 7 8 4 9 6 truck 3 7 7 5 6 4 5 2 5 5 5. The following table contains information concerning five jobs that are awaiting processing at a work center. a. b. Using SPT rule, determine (1) the average tardiness, and (2) average number of jobs at the work center. (Round to two decimal places) Using EDD rule, determine (1) the average tardiness, and (2) average number of jobs at the work center. (Round to two decimal places) Job Job Time (days) Due Date (days) 69168 ABCDE 18 11 11 24 10 17 25 6. Determine a. the minimum number of workers needed, and b. a schedule for the following staffing requirements, giving workers two consecutive days off per cycle (including Sunday). Day Mon Tue Wed Thu Fri Sat Sun Staff needed 1 4 4 4 6 8 8