ou$$re a process engineering consultant, and you$$ve been contracted to make some changes to

the emergency room at Pawhuska Hospital, Inc. to alter patient waiting times. Assume that

patients fall into two categories: critical and non$-$critical. You developed two designs $($A$,$ B$),$ and

you used computer simulations to determine the behavior of the two designs $($so you wouldn$$t

have to accrue the time and expense of implementing each design at the hospital$).$ After the

simulations, you found that patient waiting times were normally distributed for each patient

category and each design, the parameters of which are as follows $($in minutes$).$

ER

design

Critical patients Non$-$critical patients

$$

A $10\mathrm{.}21\mathrm{.}317\mathrm{.}76\mathrm{.}5$

B $8\mathrm{.}93\mathrm{.}419\mathrm{.}84\mathrm{.}3$

a$.$ Assume that an industry standard for maximum waiting time for critical patients is $14$

minutes. Compare designs A and B$.$

b$.$ Assume that an industry standard for maximum waiting time for non$-$critical patients is

$23$ minutes. Compare designs A and B$.$

c$.$ What are your thoughts on which design to choos