Exhibit 13.1 The Following Questions Are Based on the Output Below

Multiple Choice

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