January 2017
Beginner to intermediate
280 pages
217h 11m
English
Solved Problem 12-1 The Maitland Furniture store gets an average of 50 customers per shift. The manager of Maitland wants to calculate whether she should hire 1, 2, 3, or 4 salespeople. She has determined that average waiting times will be 7 minutes with 1 salesperson, 4 minutes with 2 salespeople, 3 minutes with 3 salespeople, and 2 minutes with 4 salespeople. She has estimated the cost per minute that customers wait at $1. The cost per salesperson per shift (including benefits) is $70.
How many salespeople should be hired?
The manager’s calculations are as follows:
| NUMBER OF SALESPEOPLE | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| (a) Average number of customers per shift | 50 | 50 | 50 | 50 |
| (b) Average waiting time per customer (minutes) | 7 | 4 | 3 | |