Given the following Operating Characteristics from a queuing model with time units specified in hours, answer the five questions:

Po= 0.2857

Lq= 0.4960

L= 1.6071

Wq= 0.0496

W= 0.1607

Pw= 0.3968

1. What is the probability that there are no customers in the system?
2. What is the average time, in minutes, a customer spends waiting and being served?
3. What is the average time, in minutes, a customer waits in line before being served?
4. What is the average number of customers in the system?
5. If the system serves a customer every 6 minutes, what is the service rate?