It is an operations question not a finance question

Question 34 (7 points) Jack's Refrigeration Repair is under contract to repair, recondition, and/or refurbish commercial and industrial icemakers from restaurants, seafood processors, and similar organizations. Jack currently has five jobs to be scheduled, shown in the order in which they arrived. (Assume that we are at time zero). Job V w X Y Z Processing Time (hours) 20 10 50 30 60 Due (hours) 50 30 90 45 85 a) For each of the following two priority rules (SPT and EDD), determine the sequence in which the orders have to be processed. (2 pts) b) Compute the four measures of effectiveness: average completion time, utilization metric, average number of jobs in the system, average job lateness when the SPT is used. (5 pts)