Again Interior Design provides home and office decorating assistance to its customers. In normal operation, an average of 2.5 customers arrive each hour. One design consultant is available to answer customer questions and make product recommendations. The consultant averages 10 minutes with each customer.
How many customers are in the system on average?
What is the probability that a customer will have to wait for service?
How many customers are expected in the system?
How many customers are expected in the waiting line?
How long do customers spend in the system (give your answer in minutes)?
How long do customers spend in the waiting line (give your answer in minutes)?