1. At an information booth with one server, during peak hours customers arrive according to a Poisson distribution with an average rate of 25 customers per hour. Service time is random with an average of 2.0 minutes and a standard deviation of 1 minute. Determine the average time spent in line.

a. 7.20 minutes

b. 4.75 minutes

c. 6.80 minutes

d. 5.60 minutes

e. 6.25 minutes

2. A technician is responsible for maintaining 10 sorting machines at an Amazon distribution centre. What is the population source?

a. scheduled

b. random

c. infinite

d. finite

e. priority

3.

From a managerial perspective what is the key when considering system service capacity?

Multiple Choice

a. To provide a balance between level of service and cost.

b. To minimize the cost of waiting

c. To staff at a level determined by the customers

d. To staff at the minimum level to satisfy arrival patterns

e. To always have capacity slightly less than demand.