a$)$ Using the FCFS $($first come, first served$)$ decision rule for sequencing the jobs, the order is $($assume

that jobs came in the order in which they are listed in the table$)$:

The average tardiness $($job lateness$)$ for the sequence developed using the FCFS rule $=$ days $($round

your response to two decimal places$).$

The following jobs are waiting to be processed at the same machine center. Jobs are logged as

they arrive:

All dates are specified as manufacturing planning calendar days. Assume that all jobs arrive on

day $275.$ Assume each job starts at the beginning of the day and finishes at the end of the day $($a

job that begins on day $275$ and takes $8$ days will finish on day $282,$ and the next job begins in the

morning of day $283).$ Compute all times based on initiating work on day $275.$