Mike’s Auto Body Shop has five cars waiting to be repaired. The shop is quite small, so only one car can be repaired at a time. The number of days required to repair each car and the promised date for each are given in the following table.

R epair Time Cars (days) Promised Date 1 3 5 2 2 6 3 1 9 4 4 11 5 5 8 Mike has agreed to provide a rental car to each customer whose car is not repaired on time. Compare the performance of the four sequencing rules FCFS, SPT, EDD, and CR relative to minimizing average tardiness.