$3).$ A small copy shop has a self$-$service copier. Currently there is room for only $4$people to line up for the machine $($including the person using the machine$)$; whenthere are more than $4$ people, then the additional people must line up outsidethe shop. The owners would like to avoid having people line up outside the shop,as much as possible. For that reason, they are thinking about adding a secondself$-$service copier. Self$-$service customers have been observed to arrive at therate $24$ per hour, and they use the machine $2$ minutes, on average. Assess theimpact of adding another copier. Carefully state any assumptions orapproximations you make.