A mail-order nursery specializes in European beech trees. New orders, which are processed by a single shipping clerk, have a mean arrival rate of six per day and a mean service rate of eight per day. Use the Single Server Queue Excel template to answer the following questions:

a. What is the average time an order spends in the queue waiting for the clerk to begin service?

b. What is the average time an order spends in the system?

c. How many orders, on average, are in the queue and system?