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

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