Problem
The Budd Gear Co. specializes in heat-treating gears for automobile companies. At 8:00 a.m., when Budd's shop opened today, five orders (listed in order of arrival) were waiting to be processed.
| Order |
Order Size
(units) |
Per Unit Time in
Heat Treatment
(minutes/unit) |
Due Date
(min. from now) |
| A |
16 |
4 |
160 |
| B |
6 |
12 |
200 |
| C |
10 |
3 |
180 |
| D |
8 |
10 |
190 |
| E |
4 |
1 |
220 |
a. If the due date rule is used, what sequence should be used?
The sequence is (Click to select)A-C-D-B-EB-A-C-D-EC-A-B-E-DD-E-A-C-BE-A-B-C-D.
b.What will be the average job tardiness? (Round your answer to 2 decimal places.)
Average job tardiness
c. What will be the average number of jobs in the system? (Round your answer to 2 decimal places.)
Average number of jobs
d. Would the Shortest processing time rule produce better results in terms of average job tardiness? (Round your answer to the nearest whole number.)
(Click to select)Yes No new average job tardiness is minutes.