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In: Statistics and Probability

Epsilon Airlines services predominantly the eastern and southeastern united States. The vast majority of Epsilon’s customers...

Epsilon Airlines services predominantly the eastern and southeastern united States. The vast majority of Epsilon’s customers make reservations through Epsilon’s website, but a small percentage of customers make reservations via phones. Epsilon employs call center personnel to handle these reservations and to deal with website reservation system problems and for the rebooking of flights for customers whose plans have changed or whose travel is disrupted. Staffing the call center appropriately is a challenge for Epsilon’s management team. Having too many employees on hand is a waste of money, but having too few results in very poor customer service and the potential loss of customers.

Epsilon analysts have estimated the minimum number of call center employees needed by day of the week for the upcoming vacation season (June, July, and the first two weeks of August). These estimates are as follows:


Day		 Minimum Number of
Employees Needed
Monday 60
Tuesday 90
Wednesday 45
Thursday 75
Friday 50
Saturday 60
Sunday 45

The call center employees work for five consecutive days and then have two consecutive days off. An employee may start work on any day of the week. Each call center employee receives the same salary. Assume that the schedule cycles and ignore start up and stopping of the schedule.

Develop a model that will minimize the total number of call center employees needed to meet the minimum requirements.

The call center employees work for five consecutive days and then have two consecutive days off. An employee may start work on any day of the week. Each call center employee receives the same salary. Assume that the schedule cycles and ignore start up and stopping of the schedule.

Develop a model that will minimize the total number of call center employees needed to meet the minimum requirements.

Let Xi = the number of call center employees who start work on day i
      (i = 1 = Monday, i = 2 = Tuesday...)

Find the optimal solution.

X1 =
X2 =
X3 =
X4 =
X5 =
X6 =
X7 =

Total Number of Employees =

Give the number of call center employees that exceed the minimum required.

Excess employees:

Monday =
Tuesday =
Wednesday =
Thursday =
Friday =
Saturday =
Sunday =

Solutions

Expert Solution

X1 = 15
X2 = 35
X3 = 0
X4 = 5
X5 = 20
X6 = 0
X7 = 20
Total employees 95
Excess Employees=Employees needed - Employees working that day
Monday 0
Tuesday 0
Wednesday 25
Thursday 0
Friday 25
Saturday 0
Sunday 0

orchestra answered 1 year ago
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