Customers enter the camera department of a store at an average rate of six per hour. The department is staffed by one employee, who takes an average of six minutes to serve each arrival. Assume this is a simple Poisson arrival, exponentially distributed service time situation. (Use the Excel spreadsheet Queue Models.) a-1. As a casual observer, how many people would you expect to see in the camera department (excluding the clerk)? Note: Round your answer to 2 decimal places. a-2. How long would a customer expect to spend in the camera department (total time)? Note: Do not round intermediate calculations. Round your answer to the nearest whole number. b. What is the utilization of the clerk? Note: Do not round intermediate calculations. Round your answer to the nearest whole number.
Customers enter the camera department of a store at an average rate of six per hour. The department is staffed by one employee, who takes an average of six minutes to serve each arrival. Assume this is a simple Poisson arrival, exponentially distributed service time situation. (Use the Excel spreadsheet Queue Models.)
a-1. As a casual observer, how many people would you expect to see in the camera department (excluding the clerk)?
Note: Round your answer to 2 decimal places.
a-2. How long would a customer expect to spend in the camera department (total time)?
Note: Do not round intermediate calculations. Round your answer to the nearest whole number.
b. What is the utilization of the clerk?
Note: Do not round intermediate calculations. Round your answer to the nearest whole number.
c. What is the probability that there are more than two people in the camera department (excluding the clerk)?
Note: Round your intermediate calculations to 3 decimal places and final answer to 1 decimal place.
d. Another clerk has been hired for the camera department who also takes an average of six minutes to serve each arrival. How long would a customer expect to spend in the department now?
Note: Round your answer to 1 decimal place.
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