$($e$)$ Plot a graph of average inclvidual deloy versus the repair perind.

A

ir Pertiod i

Average Delay $($b$)$

Average Delay $($h$)$

$($t$)$ Use this graph to discuss the effect of the experted repair time on the average delay.

The increase in expected repoir time causes an incrase in average delay; the relationship is Anear.

The increase in expected repair time cuuses an incrasse in average delay; the relationship is nat Ahear.

The increase in expected repsir time causes a decresse in average delay; the relationahip is Ahear.

The increase in expected repsir time cruses a decrease in average delay; the relationahip is not Winear.