Question

Picture yourself waiting in a line at a Chase Bank. The bank tellers (in a pooled queue) can serve 7.5 customers per hour. However, 9.5 customers require service per hour.

The queue growth rate is ______ customers per hour. This is a ________ slope.
a. -2, negative
b. -2, positive
c. 2, positive
d. 2, negative

Answer 1

c. 2, positive

Step-by-step explanation:

Given :

Customers require service per hour = 9.5

Pooled queue service per hour = 7.5

Queue Growth Rate = Customers require service per hour - Pooled queue service per hour

9.5 - 7.5

= 2

Customers require service per hour > Pooled queue service per hour ; and Queue growth rate is > 0. So Queue growth rate is positive