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.
-What is the mean arrival rate based on the following 8 arrival rate observations?
Number of arrivals per hour: 6, 5, 3, 4, 7, 6, 4, 5

A) 3
B) 4
C) 5
D) 6

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. 
-What is the mean arrival rate based on the following 8 arrival rate observations? ​
Number of arrivals per hour: 6, 5, 3, 4, 7, 6, 4, 5
​
A) 3 
B) 4 
C) 5 
D) 6

Quizplus · Accepted Answer

The mean arrival rate is calculated by summing all the observations and then dividing by the number of observations. Here, $6 + 5 + 3 + 4 + 7 + 6 + 4 + 5 = 40$, and $40 / 8 = 5$.

Exhibit 13.1 The Following Questions Are Based on the Output Below