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Chapter D, Problem 22P

a)

Summary Introduction

To determine: The minimum number of server for the system.

Introduction: The mathematical study which analyses the causes of delay in the waiting line is known as queuing theory. The theory examines all components in the waiting line such as arrival process, service process, and number of servers, system and customers.

b)

Summary Introduction

To determine: The optimal number of server for the system.

c)

Summary Introduction

To determine: The cost of the system at the usage of optimal number of servers.

d)

Summary Introduction

To determine: The server utilization rate at minimum number of server.

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Question   The new accounts loan officer of the Millennium Commercial Bank interviews all customers for new accounts. The customers desiring to open new accounts arrive at the rate of 4 per hour, according to a Poisson distribution, and the accounts officer spends an average of 12 minutes with each customer, setting up a new account.   Required   A. Determine the operating characteristics (P0, L, Lq, W, Wq and Pw) for this system.       B. Add an additional accounts officer to the system described in this problem so that it is now a multiple-server queuing system with two channels and determine the operating characteristics required in part A.

Chapter D Solutions

Operations Management: Sustainability and Supply Chain Management, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)

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