Determine the average number of customers waiting in line

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A vending machine dispenses hot chocolate or coffee. Service time is 30 seconds per cup and is constant. Customers arrive at a mean rate of 78 per hour, and this rate is Poisson-distributed.

a. Determine the average number of customers waiting in line. (Round your answer to 2 decimal places.)

b. Determine the average time customers spend in the system. (Do not round intermediate calculations. Round your answer to 2 decimal places.)

c. Determine the average number in the system. (Do not round intermediate calculations. Round your answer to 2 decimal places.)

Reference no: EM13108226

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