Suppose that you are hired to analyze an emergency department $($ED$)$ of a hospital system and make recommendations with the objective of improving the operations and service quality.

ED patients are classified into two general types $($based on condition severity$)$: $1)$ Non$-$critical Patients $($NCP$)$: patients with conditions such as flu, cuts, or sprains; $2)$ Critical Patients $($CP$)$: emergency patients with life$-$threatening or serious conditions such as poisoning or bone fractures. Based on the historical data on patient arrivals, the arrival rates are estimated as in Table $1.$

Table $1.$ Patient Arrival Rates $($Number of Patients per Hour$)$

Non$-$critical Patients$-$ Day of Week Monday$-$Friday Saturday$-$Sunday Critical Patients$-$

Day of Week

Monday$-$Thursday Friday$-$Saturday Sunday

Arrival Rate During Time Period$00$:$00-06$:$00$

$0\mathrm{.}10\mathrm{.}5$

$06$:$00-12$:$0012$:$00-18$:$0018$:$00$:$24$:$00$

$120\mathrm{.}2$

$11\mathrm{.}50\mathrm{.}8$Arrival Rate During Time Period $00$:$00-06$:$0006$:$00-12$:$0012$:$00-18$:$0018$:$00$:$24$:$000\mathrm{.}30\mathrm{.}522$

$1\mathrm{.}50\mathrm{.}51\mathrm{.}51\mathrm{.}5$

$1\mathrm{.}50\mathrm{.}50\mathrm{.}40\mathrm{.}4$ED consists of two front desk counters $($with a registration officer at each counter$),$ two standard treatment rooms $($generally used for NCPs$),$ and one trauma room $($used only for CPs$).$ How much create use?