Q. Vending machine dispenses hot chocolate or coffee. Service time is 30 seconds per cup and is constant. Customers arrive at a mean rate of 80 per hour and this rate is Poisson-distributed.
a. Decide the average number of customers waiting in line. (Round your answer to 2 decimal places.)
Average number of customer
b. Decide the average time customers spend in the system. (Do not round intermediate calculation. Round your answer to 2 decimal places.)
Average time min.
c. Decide the average number in the system. (Do not round intermediate calculation. Round your answer to 2 decimal places.)
Average number customers