Question 1

Changing the demand pattern by offering off-peak discounts represents an effective way to try to manage long waiting lines.

Accepted Answer

A) True 
 B)False

Question 2

4! = _________?

Accepted Answer

A)  0 
B)  1 
C)  undefined 
D)  4 
E)  24 
A)  0 
B)  1 
C)  undefined 
D)  4 
E)  24

Question 3

A single-line, multiple-server system has _____ ______ in terms of waiting times than the same system with a line for each server.

Accepted Answer

A)  poorer performance 
B)  similar performance 
C)  better performance 
D)  comparable performance 
E)  reduced performance 
A)  poorer performance 
B)  similar performance 
C)  better performance 
D)  comparable performance 
E)  reduced performance

Question 4

First-come, first-served is an unbiased priority rule.

Accepted Answer

A) True 
 B)False

Question 5

For a single-server, single-line, single-phase waiting line system, where F1F1F1S1F1F1F10 represents the mean arrival rate of customers and F1F1F1S1F1F1F10 represents the mean service rate, what is the formula for the average time spent waiting in line?

Accepted Answer

A)  F1F1F1S1F1F1F10 / F1F1F1S1F1F1F10 
B)  F1F1F1S1F1F1F10 / (F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
C)  F1F1F1S1F1F1F102 / F1F1F1S1F1F1F10(F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
D)  1 / (F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
E)  pW 
A)  F1F1F1S1F1F1F10 / F1F1F1S1F1F1F10 
B)  F1F1F1S1F1F1F10 / (F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
C)  F1F1F1S1F1F1F102 / F1F1F1S1F1F1F10(F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
D)  1 / (F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
E)  pW

Question 6

Which of the following is not considered to be a valid performance measure of a waiting line system?

Accepted Answer

A)  the average number of customers waiting in line 
B)  the average number of customers in the system 
C)  the average amount of time customers spend waiting 
D)  the system utilization rate 
E)  the service pattern 
A)  the average number of customers waiting in line 
B)  the average number of customers in the system 
C)  the average amount of time customers spend waiting 
D)  the system utilization rate 
E)  the service pattern

Question 7

There are many variations of the mathematical models for designing waiting lines.

Accepted Answer

A) True 
 B)False

Question 8

What are two ways to improve server efficiency?

Accepted Answer

process improvements

Question 9

Consider a single-line, single-server waiting line system. Suppose that customers arrive according to a Poisson distribution at an average rate of 50 per hour, and the average (exponentially distributed) service time is 45 seconds per customer. What is the average time spent in the system (in minutes)?

Accepted Answer

The answer of Consider a single-line, single-server waiting line system....

Question 10

Why do larger-scale waiting line systems use discrete-event simulation?

Accepted Answer

As waiting line systems become more comp

Question 11

For a single-line, multi-server, single-phase waiting line system, where F1F1F1S1F1F1F10 represents the mean arrival rate of customers and F1F1F1S1F1F1F10 represents the mean service rate for each of s identical servers, what is the formula for the average utilization of the system?

Accepted Answer

A)  F1F1F1S1F1F1F10 / F1F1F1S1F1F1F10 
B)  F1F1F1S1F1F1F10 / (F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
C)  F1F1F1S1F1F1F10 / sF1F1F1S1F1F1F10 
D)  s / (F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
E)  F1F1F1S1F1F1F10 / s(F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
A)  F1F1F1S1F1F1F10 / F1F1F1S1F1F1F10 
B)  F1F1F1S1F1F1F10 / (F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
C)  F1F1F1S1F1F1F10 / sF1F1F1S1F1F1F10 
D)  s / (F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10) 
E)  F1F1F1S1F1F1F10 / s(F1F1F1S1F1F1F10F1F1F1S1F1F1F10F1F1F1S1F1F1F10)

Question 12

Which of the following is not considered to be a valid performance measure of a waiting line system?

Accepted Answer

A)  the average number of customers waiting in line 
B)  the customer population source 
C)  the average number of customers in the system 
D)  the average amount of time customers spend waiting 
E)  the system utilization rate 
A)  the average number of customers waiting in line 
B)  the customer population source 
C)  the average number of customers in the system 
D)  the average amount of time customers spend waiting 
E)  the system utilization rate

Question 13

Which of the following is not considered to be a valid performance measure of a waiting line system?

Accepted Answer

A)  the average number of customers waiting in line 
B)  the average number of customers in the system 
C)  the average amount of time customers spend waiting 
D)  the arrival pattern 
E)  the system utilization rate 
A)  the average number of customers waiting in line 
B)  the average number of customers in the system 
C)  the average amount of time customers spend waiting 
D)  the arrival pattern 
E)  the system utilization rate

Question 14

Which of the following is not an assumption of the waiting line models presented in the textbook?

Accepted Answer

A)  the customers are patient 
B)  customers come from an infinite population 
C)  customer arrival rate is described by a Gaussian distribution 
D)  service times are described by an exponential distribution 
E)  the waiting line priority rule is first-come, first-served 
A)  the customers are patient 
B)  customers come from an infinite population 
C)  customer arrival rate is described by a Gaussian distribution 
D)  service times are described by an exponential distribution 
E)  the waiting line priority rule is first-come, first-served

Question 15

A waiting line occurs whenever there is less customer demand for a service than can be provided.

Accepted Answer

A) True 
 B)False

Question 16

Consider a single-line, single-server waiting line system. Suppose that customers arrive according to a Poisson distribution at an average rate of 60 per hour, and the average (exponentially distributed) service time is 45 seconds per customer. What is the average number of customers in the system?

Accepted Answer

The answer of Consider a single-line, single-server waiting line system....

Question 17

What occurs when a customer decides not to enter the waiting line?

Accepted Answer

A)  vacillating 
B)  walking 
C)  reneging 
D)  balking 
E)  jockeying 
A)  vacillating 
B)  walking 
C)  reneging 
D)  balking 
E)  jockeying

Question 18

Which of the following is not considered to be an element of a waiting line system?

Accepted Answer

A)  the customer population source 
B)  the service system 
C)  the arrival and service patterns 
D)  the priorities used for controlling the line 
E)  the system utilization rate 
A)  the customer population source 
B)  the service system 
C)  the arrival and service patterns 
D)  the priorities used for controlling the line 
E)  the system utilization rate

Question 19

A customer population is called _______________ when the number of potential new customers is not affected by the number of customers already in the system.

Accepted Answer

A)  finite 
B)  infinite 
C)  dependent 
D)  independent 
E)  unbiased 
A)  finite 
B)  infinite 
C)  dependent 
D)  independent 
E)  unbiased

Question 20

For which of the following priority rules are the customers waiting times most likely to be proportional to their respective service times?

Accepted Answer

A)  first come, first served 
B)  longest service requirements first 
C)  quickest service requirements first 
D)  best customers first 
E)  emergencies first 
A)  first come, first served 
B)  longest service requirements first 
C)  quickest service requirements first 
D)  best customers first 
E)  emergencies first

Changing the demand pattern by offering off-peak discounts represents an effective way to try to manage long waiting lines.

4! = _________?

A single-line, multiple-server system has _ __ in terms of waiting times than the same system with a line for each server.

First-come, first-served is an unbiased priority rule.

For a single-server, single-line, single-phase waiting line system, where  represents the mean arrival rate of customers and  represents the mean service rate, what is the formula for the average time spent waiting in line?

Which of the following is not considered to be a valid performance measure of a waiting line system?

There are many variations of the mathematical models for designing waiting lines.

What are two ways to improve server efficiency?

Why do larger-scale waiting line systems use discrete-event simulation?

For a single-line, multi-server, single-phase waiting line system, where  represents the mean arrival rate of customers and  represents the mean service rate for each of s identical servers, what is the formula for the average utilization of the system?

Which of the following is not considered to be a valid performance measure of a waiting line system?

Which of the following is not considered to be a valid performance measure of a waiting line system?

Which of the following is not an assumption of the waiting line models presented in the textbook?

A waiting line occurs whenever there is less customer demand for a service than can be provided.

Consider a single-line, single-server waiting line system. Suppose that customers arrive according to a Poisson distribution at an average rate of 60 per hour, and the average (exponentially distributed) service time is 45 seconds per customer. What is the average number of customers in the system?

What occurs when a customer decides not to enter the waiting line?

Which of the following is not considered to be an element of a waiting line system?

A customer population is called _______________ when the number of potential new customers is not affected by the number of customers already in the system.

For which of the following priority rules are the customers waiting times most likely to be proportional to their respective service times?

Introduction to Operations Management

Operations Strategy and Competitiveness

Product Design and Process Selection

Supply Chain Management

Total Quality Management

Statistical Quality Control

Just-In-Time and Lean Systems

Forecasting

Capacity Planning and Facility Location

Facility Layout

Work System Design

Inventory Management

Aggregate Planning

Resource Planning

Scheduling

Project Management

Spreadsheet Modeling: An Introduction

Introduction to Optimization

Master Scheduling and Rough-Cut Capacity Planning

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Exam 19: Waiting Line Models

Changing the demand pattern by offering off-peak discounts represents an effective way to try to manage long waiting lines.

4! = _________?

A single-line, multiple-server system has _____ ______ in terms of waiting times than the same system with a line for each server.

First-come, first-served is an unbiased priority rule.

For a single-server, single-line, single-phase waiting line system, where  represents the mean arrival rate of customers and  represents the mean service rate, what is the formula for the average time spent waiting in line?

Which of the following is not considered to be a valid performance measure of a waiting line system?

There are many variations of the mathematical models for designing waiting lines.

What are two ways to improve server efficiency?

Why do larger-scale waiting line systems use discrete-event simulation?

For a single-line, multi-server, single-phase waiting line system, where  represents the mean arrival rate of customers and  represents the mean service rate for each of s identical servers, what is the formula for the average utilization of the system?

Which of the following is not considered to be a valid performance measure of a waiting line system?

Which of the following is not considered to be a valid performance measure of a waiting line system?

Which of the following is not an assumption of the waiting line models presented in the textbook?

A waiting line occurs whenever there is less customer demand for a service than can be provided.

Consider a single-line, single-server waiting line system. Suppose that customers arrive according to a Poisson distribution at an average rate of 60 per hour, and the average (exponentially distributed) service time is 45 seconds per customer. What is the average number of customers in the system?

What occurs when a customer decides not to enter the waiting line?

Which of the following is not considered to be an element of a waiting line system?

A customer population is called _______________ when the number of potential new customers is not affected by the number of customers already in the system.

For which of the following priority rules are the customers waiting times most likely to be proportional to their respective service times?

Introduction to Operations Management

Operations Strategy and Competitiveness

Product Design and Process Selection

Supply Chain Management

Total Quality Management

Statistical Quality Control

Just-In-Time and Lean Systems

Forecasting

Capacity Planning and Facility Location

Facility Layout

Work System Design

Inventory Management

Aggregate Planning

Resource Planning

Scheduling

Project Management

Spreadsheet Modeling: An Introduction

Introduction to Optimization

Master Scheduling and Rough-Cut Capacity Planning

Filters

A single-line, multiple-server system has _ __ in terms of waiting times than the same system with a line for each server.