Question

The Decision Sciences Department is trying to determine whether to rent a slow or a fast
copier. The department believes that an employee's time is worth $15 per hour. The slow
copier rents for $4 per hour, and it takes an employee an average of 10 minutes to
complete copying. The fast copier rents for $15 per hour, and it takes an employee an
average of six minutes to complete copying. On average, four employees per hour need to
use the copying machine. (Assume the copying times and interarrival times to the
copying machine are exponentially distributed.) Which machine should the department
rent to minimize expected total cost per hour?
A)
B)
C)
D)
Worst to slow copier.
Better to slow copier.
Worst to fast copier,
Better to slow copier,​

Answer 1

Answer:

Step-by-step explanation:

Consider an airport where taxis and customers arrive (exponential inter-arrival times) with respective rates of 1and 2 per minute. No matter how many other taxis are present, a taxi will wait. If an arriving customer does not find a taxi, the customer immediately leaves. a.Model this system as a birth–death process . b.Find the average number of taxis that are waiting for a customer. c.Suppose all customers who use a taxi pay a $2 fare. During a typical hour, how much revenue will the taxis receive

Answer 2

Answer:

a is the correct answer