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A linear programming computer package is needed. Epsilon Airlines services predominately the eastern and southeastern United States. A vast majority of Epsilon's customers make reservations through Epsilon's website, but percentage of customers make reservations via phone. Epsilon employs call-center personnel to handle these reservations along with any problems with the website reservation system and for the rebooking of flights for customers if their plans change or their 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 week for the upcoming vacation season (June, July, and the first two weeks of August). These estimates are given in the following table. Day Monday Tuesday Wednesday Thursday Friday Saturday Sunday Minimum Number of Employees Needed 80 50 45 65 100 90 small 50 The call-center employees work five consecutive days and then have two consecutive days off. An employee may start work any day of the week. Each call-center employee receive 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 X, = the number of call-center employees who start work on day i where i = 1 = Monday, i = 2 = Tuesday, etc). Min X₁ + X₂ +X3+X₁ + X5 + X6 + Xy

A linear programming computer package is needed. Epsilon Airlines services predominately the eastern and southeastern United States. A vast majority of Epsilon's customers make reservations through Epsilon's website, but percentage of customers make reservations via phone. Epsilon employs call-center personnel to handle these reservations along with any problems with the website reservation system and for the rebooking of flights for customers if their plans change or their 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 week for the upcoming vacation season (June, July, and the first two weeks of August). These estimates are given in the following table. Day Monday Tuesday Wednesday Thursday Friday Saturday Sunday Minimum Number of Employees Needed 80 50 45 65 100 90 small 50 The call-center employees work five consecutive days and then have two consecutive days off. An employee may start work any day of the week. Each call-center employee receive 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 X, = the number of call-center employees who start work on day i where i = 1 = Monday, i = 2 = Tuesday, etc). Min X₁ + X₂ +X3+X₁ + X5 + X6 + Xy

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter12: Queueing Models
Section: Chapter Questions
Problem 59P
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A linear programming computer package is needed. Epsilon Airlines services predominately the eastern and southeastern United States. A vast majority of Epsilon's customers make reservations through Epsilon's website, but a small percentage of customers make reservations via phone. Epsilon employs call-center personnel to handle these reservations along with any problems with the website reservation system and for the rebooking of flights for customers if their plans change or their 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 week for the upcoming vacation season (June, July, and the first two weeks of August). These estimates are given in the following table. Day s.t. Monday Tuesday Wednesday Thursday Friday Saturday Sunday Minimum Number of Employees Needed 80 50 45 65 100 90 50 The call-center employees work five consecutive days and then have two consecutive days off. An employee may start work 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 X; = the number of call-center employees who start work on day i where i = 1 = Monday, i = 2 = Tuesday, etc). Min X₁ + X₂ + X3 + X₁ + X 5 + X6 + X7
Transcribed Image Text:A linear programming computer package is needed. Epsilon Airlines services predominately the eastern and southeastern United States. A vast majority of Epsilon's customers make reservations through Epsilon's website, but a small percentage of customers make reservations via phone. Epsilon employs call-center personnel to handle these reservations along with any problems with the website reservation system and for the rebooking of flights for customers if their plans change or their 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 week for the upcoming vacation season (June, July, and the first two weeks of August). These estimates are given in the following table. Day s.t. Monday Tuesday Wednesday Thursday Friday Saturday Sunday Minimum Number of Employees Needed 80 50 45 65 100 90 50 The call-center employees work five consecutive days and then have two consecutive days off. An employee may start work 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 X; = the number of call-center employees who start work on day i where i = 1 = Monday, i = 2 = Tuesday, etc). Min X₁ + X₂ + X3 + X₁ + X 5 + X6 + X7
The call-center employees work five consecutive days and then have two consecutive days off. An employee may start work 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 X; = the number of call-center employees who start work on day i where i = 1 = Monday, i = 2 = Tuesday, etc). Min X₁ + X₂ + X3 + X₁ + X 5 + X6 + X q 4 s.t. Monday X₁ + X₂+X5 + X6 + X7 ≥ 75 Tuesday Wednesday Thursday Friday Saturday Sunday X1, х2, хз, Х4, X5, X6, X, zo 4' 6' Find the optimal solution. (X₁, X2, X3, X4, X5, X6, X7) = 1/ Give the number of call-center employees that exceed the minimum required. (M, Tu, W, Th, F, Sa, Su) =
Transcribed Image Text:The call-center employees work five consecutive days and then have two consecutive days off. An employee may start work 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 X; = the number of call-center employees who start work on day i where i = 1 = Monday, i = 2 = Tuesday, etc). Min X₁ + X₂ + X3 + X₁ + X 5 + X6 + X q 4 s.t. Monday X₁ + X₂+X5 + X6 + X7 ≥ 75 Tuesday Wednesday Thursday Friday Saturday Sunday X1, х2, хз, Х4, X5, X6, X, zo 4' 6' Find the optimal solution. (X₁, X2, X3, X4, X5, X6, X7) = 1/ Give the number of call-center employees that exceed the minimum required. (M, Tu, W, Th, F, Sa, Su) =
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