Table 1: The number of jobs in each group, the positional weights, the optimal schedule, and the total cost.

The number of jobs in each group The positional weights The optimal schedule

0 (11, 8, 5, 5, 3) 82.75

1 (11, 5, 3, 8, 5) 70.47

2 (11, 5, 8, 3, 5) 70.60

3 (11, 3, 8, 5, 5) 82.78

4 (11, 8, 5, 5, 3) 144.93