Exhibit 13.1
The following questions are based on the output below.
A store currently operates its service system with 1 operator. Arrivals follow a Poisson distribution and service times are exponentially distributed. The following spreadsheet has been developed for the system.
-The service times for a grocery store with one checkout line have a mean of 3 minutes and a standard deviation of 20 seconds. Customer arrivals at the checkout stand follow a Poisson distribution. What type of system is it?
A) M/G/1
B) M/D/1
C) G/M/1
D) M/M/1

Question

Exhibit 13.1
The following questions are based on the output below.
A store currently operates its service system with 1 operator. Arrivals follow a Poisson distribution and service times are exponentially distributed. The following spreadsheet has been developed for the system. 
-The service times for a grocery store with one checkout line have a mean of 3 minutes and a standard deviation of 20 seconds. Customer arrivals at the checkout stand follow a Poisson distribution. What type of system is it?
A) M/G/1 
B) M/D/1 
C) G/M/1 
D) M/M/1

Quizplus · Accepted Answer

The system is an M/G/1 queue. This is because arrivals follow a Poisson distribution (denoted by "M" for Markovian), the service times are general (denoted by "G" for General, indicating any arbitrary distribution, in this case with a mean of 3 minutes and a standard deviation), and there is one server (denoted by "1").

Exhibit 13.1 The Following Questions Are Based on the Output Below