The owner/operator of the local franchise of Handyman, Inc., has four jobs to do today, shown in the order they were received:

1) If he uses the first come, first served (FCFS) priority rule to schedule these jobs, what will be the average completion time?

a. 7.5 hours

b. 5 hours

c. 3 hours

d. 2.5 hours

e. 2 hours

2) If he uses the earliest due date first (EDD) priority rule to schedule these jobs, what will be the average job tardiness?

a. 0 hours

b. 2.25 hours

c. 2 hours

d. 1.75 hours

e. 1.5 hours

3) If he uses the shortest processing time first (SPT) priority rule to schedule these jobs, what will be the average completion time?

a. 5 hours

b. 2 hours

c. 2.5 hours

d. 7.5 hours

e. 3 hours

4) If he uses the shortest processing time first (SPT) priority rule to schedule these jobs, what will be the average job tardiness?

a. 2.25 hours

b. 1.5 hours

c. 2 hours

d. 1.75 hours

e. 0 hours