At Morgan's Transformer Rebuilding, Five Jobs Are Ready Now for Dispatching

Essay

At Morgan's Transformer Rebuilding, five jobs are ready now for dispatching to a machine centre. The processing times and due dates for the jobs are given below. Use earliest due date to sequence the jobs, and calculate the average completion time, the average job lateness, and the average number of jobs in the machine centre.
$$\begin{array} { | c | c | c | } \hline \text { Job } & \text { Work Time (days) } & \text { Due Date (days) } \\\hline \text { A } & 15 & 38 \\\hline \text { B } & 13 & 28 \\\hline \text { C } & 7 & 20 \\\hline \text { D } & 18 & 50 \\\hline \text { E } & 9 & 15 \\\hline\end{array}$$