Callum Communications (Revisited) Revisit Example 

Suppose that the objective at Callum Communications is to minimize the number of employees, rather than to minimize the total cost.

(a) What is the minimum number of employees needed at the call center?

(b) Does the solution in (a) achieve the minimum salary cost?

EXAMPLE :

Callum Communications runs a small call center that operates seven days a week. Callum requires a specified minimum number of employees to be at work each day, to provide the necessary level of customer service. Under union regulations, employees at the call center must all work full-time schedules, which means five consecutive workdays and two days off per week. Furthermore, employees whose regular schedules include a weekend day receive a pay premium. Specifically, employees who work five weekdays are paid $400 per week. Employees who work one of the weekend days are paid $440, and employees who work both of the weekend days are paid $470. The minimum daily requirements for workers are described in the following table.