find A-D:

b) How long will a person wait in line on average?

The average time a person spends in the queue is ______ minutes(round your response to two decimal places).

c) If Andy's wife joins him in serving meals (at the same speed as Andy), how will your answers to parts a and bchange?

Using the table, the new average number of customers in the queue is _________ customers (round your response to four decimal places).

The new average time a person spends in the queue is _________ minutes (round your response to two decimalplaces).

please help i got these answers wrong and i need help!!! please bold the answer!!

Ted Glickman, the administrator at D.C. General Hospital emergency room faces the problem of providing treatment for patients who artive at different rates during the day. There are 4 doctors avalable to treat patients when needed. If not needed, thoy can be assigned other responsibilities (such as doing lab tests, reports, X-ray diagnoses) or else rescheduled to work at other hours. It is important to provide quick and responsive treatment, and Ted feels that, on the average, patients should not have to sit in the wailing area for more than 6 . minutes before boing seen by a doctor. Patients are treated on a first-come, first-6erved basis and see the first avallable doctor afier waiting in the queue. The arrival pattern for a typical day is as follows: Arrivals follow a Poisson distribution, and treatment times, 12 minutes on the average, follow the fegative oxponential pattern. a) How many doctors should be on duty during each period to maintain the level of patient care expected? The least number of doctors required during the 9A.M3 PM. shif to meet the set waiting time goal is