Question 1

To use Excel to generate a normally distributed random variable,you must know the mean and standard deviation of the distribution and have a random number between 0 and 1.

Accepted Answer

A) True 
 B)False  True

Question 2

Values for the probabilistic inputs to a simulation

Accepted Answer

A) are selected by the decision maker. 
B) are controlled by the decision maker. 
C) are randomly generated based on historical information. 
D) are calculated by fixed mathematical formulas. 
A) are selected by the decision maker. 
B) are controlled by the decision maker. 
C) are randomly generated based on historical information. 
D) are calculated by fixed mathematical formulas. C

Question 3

A value for probabilistic input from a discrete probability distribution

Accepted Answer

A) is the value given by the RAND()function. 
B) is given by matching the probabilistic input with an interval of random numbers. 
C) is between 0 and 1. 
D) must be non-negative. 
A) is the value given by the RAND()function. 
B) is given by matching the probabilistic input with an interval of random numbers. 
C) is between 0 and 1. 
D) must be non-negative. B

Question 4

Three airlines compete on the route between New York and Los Angeles.Stanton Marketing has performed an analysis of first class business travelers to determine their airline choice.Stanton has modeled this choice as a Markov process and has determined the following transition probabilities.
   
a.Show the random number assignments that can be used to simulate the first class business traveler's next airline when her last airline is A,B,and C.
b.Assume the traveler used airline C last.Simulate which airline the traveler will be using over her next 25 flights.What percent of her flights are on each of the three airlines? Use the following random numbers,going from left to right,top to bottom.
   
SOLUTIONS TO PROBLEMS

Accepted Answer

a.
 @#IMG-DLM& b.20% of flight

Question 5

Each simulation run provides only a sample of how the real system will operate.

Accepted Answer

A) True 
 B)False

Question 6

Validation determines that the computer procedure is operating as it is intended to operate.

Accepted Answer

A) True 
 B)False

Question 7

Common features of simulations--generating values from probability distributions,maintaining records,recording data and summarizing results--led to the development of

Accepted Answer

A) Excel and Lotus. 
B) BASIC,FORTRAN,PASCAL,and C. 
C) GPSS,SIMSCRIPT,SLAM,and Arena 
D) LINDO and The Management Scientist 
A) Excel and Lotus. 
B) BASIC,FORTRAN,PASCAL,and C. 
C) GPSS,SIMSCRIPT,SLAM,and Arena 
D) LINDO and The Management Scientist

Question 8

When events occur at discrete points in time

Accepted Answer

A) a simulation clock is required. 
B) the simulation advances to the next event. 
C) the model is a discrete-event simulation. 
D) All of the alternatives are correct. 
A) a simulation clock is required. 
B) the simulation advances to the next event. 
C) the model is a discrete-event simulation. 
D) All of the alternatives are correct.

Question 9

Simulation

Accepted Answer

A) does not guarantee optimality. 
B) is flexible and does not require the assumptions of theoretical models. 
C) allows testing of the system without affecting the real system. 
D) All of the alternatives are correct. 
A) does not guarantee optimality. 
B) is flexible and does not require the assumptions of theoretical models. 
C) allows testing of the system without affecting the real system. 
D) All of the alternatives are correct.

Question 10

The number of units expected to be sold is uniformly distributed between 300 and 500.If r is a random number between 0 and 1,then the proper expression for sales is

Accepted Answer

A) 200(r) 
B) r + 300 
C) 300 + 500(r) 
D) 300 + r(200) 
A) 200(r) 
B) r + 300 
C) 300 + 500(r) 
D) 300 + r(200)

Question 11

Which of the following statements is INCORRECT regarding the disadvantages of simulation?

Accepted Answer

A) Each simulation run only provides a sample of how the real system will operate. 
B) The summary of the simulation data only provides estimates about the real system. 
C) The process of developing a simulation model of a complex system can be time-consuming. 
D) The larger the number of probabilistic inputs a system has,the less likely a simulation will provide the best approach for studying the system. 
A) Each simulation run only provides a sample of how the real system will operate. 
B) The summary of the simulation data only provides estimates about the real system. 
C) The process of developing a simulation model of a complex system can be time-consuming. 
D) The larger the number of probabilistic inputs a system has,the less likely a simulation will provide the best approach for studying the system.

Question 12

Trials of a simulation show what would happen when values of the probabilistic input change.

Accepted Answer

A) True 
 B)False

Question 13

The process of determining that the computer procedure that performs the simulation calculations is logically correct is called

Accepted Answer

A) implementation. 
B) validation. 
C) verification. 
D) repetition. 
A) implementation. 
B) validation. 
C) verification. 
D) repetition.

Question 14

Simulation is a trial-and-error approach to problem solving.

Accepted Answer

A) True 
 B)False

Question 15

A simulation model uses the mathematical expressions and logical relationships of the

Accepted Answer

A) real system. 
B) computer model. 
C) performance measures. 
D) estimated inferences. 
A) real system. 
B) computer model. 
C) performance measures. 
D) estimated inferences.

Question 16

Seventy-five percent of calls arriving at a help line can be handled by the person who answers the phone,but the remaining 25% of them will need to be referred to someone else.Assume that every call requires one minute of attention by the person who answers the phone (either to answer the question or to figure out how the referral should be handled).Calls that are referred need an additional amount of time,as given in the table below.
   Callers are served on a first come,first served basis,and are put on hold until the line is free.Use the random numbers to simulate what happens to 10 callers.(Use the random numbers in order - from left to right,first row first - as you need them. )What percentage of your callers needs to be referred? Of those who had to be referred,what is the average referral time?

Accepted Answer

@#IMG-DLM& 
40% of the callers

Question 17

If customer 2 has a service time of 1.6,and if customer 3 has an interarrival time of 1.1 and a service time of 2.3,when will customer 3's service be completed?

Accepted Answer

A) 5.0 
B) 3.9 
C) 3.4 
D) There is not enough information to answer. 
A) 5.0 
B) 3.9 
C) 3.4 
D) There is not enough information to answer.

Question 18

Susan Winslow has two alternative routes to travel from her home in Olport to her office in Lewisburg.She can travel on Freeway 5 to Freeway 57 or on Freeway 55 to Freeway 91.The time distributions are as follows:
   Do a five-day simulation of each of the two combinations of routes using the random numbers below.Based on this simulation,which routes should Susan take if her objective is to minimize her total travel time?

Accepted Answer

Freeways 5-57 have 6

Question 19

For the past 50 days,daily sales of laundry detergent in a large grocery store have been recorded (to the nearest 10).
   
a.Determine the relative frequency for each number of units sold.
b.Suppose that the following random numbers were obtained using Excel:
   
Use these random numbers to simulate 10 days of sales.

Accepted Answer

The answer of For the past 50 days,daily sales of...

Question 20

Arrivals to a truck repair facility have an interarrival time that is uniformly distributed between 20 and 50 minutes.Service times are normally distributed with mean 30 minutes and standard deviation 10 minutes.Develop a spreadsheet model to simulate the arrival of 100 trucks.Collect information on the time the repair facility is idle and on the average waiting time for trucks.

Accepted Answer

Representative formu

To use Excel to generate a normally distributed random variable,you must know the mean and standard deviation of the distribution and have a random number between 0 and 1.

Values for the probabilistic inputs to a simulation

A value for probabilistic input from a discrete probability distribution

Each simulation run provides only a sample of how the real system will operate.

Validation determines that the computer procedure is operating as it is intended to operate.

Common features of simulations--generating values from probability distributions,maintaining records,recording data and summarizing results--led to the development of

When events occur at discrete points in time

Simulation

The number of units expected to be sold is uniformly distributed between 300 and 500.If r is a random number between 0 and 1,then the proper expression for sales is

Which of the following statements is INCORRECT regarding the disadvantages of simulation?

Trials of a simulation show what would happen when values of the probabilistic input change.

The process of determining that the computer procedure that performs the simulation calculations is logically correct is called

Simulation is a trial-and-error approach to problem solving.

A simulation model uses the mathematical expressions and logical relationships of the

If customer 2 has a service time of 1.6,and if customer 3 has an interarrival time of 1.1 and a service time of 2.3,when will customer 3's service be completed?

Introduction

Introduction to Probability

Probability Distributions

Decision Analysis

Utility and Game Theory

Forecasting

Introduction to Linear Programming

Lp Sensitivity Analysis and Interpretation of Solution

Linear Programming Applications

Distribution and Network Problems

Integer Linear Programming

Advanced Optimization Application

Project Scheduling: Pertcpm

Inventory Models

Waiting Line Models

Markov Processes

Filters

Exam 16: Simulation

To use Excel to generate a normally distributed random variable,you must know the mean and standard deviation of the distribution and have a random number between 0 and 1.

Values for the probabilistic inputs to a simulation

A value for probabilistic input from a discrete probability distribution

Each simulation run provides only a sample of how the real system will operate.

Validation determines that the computer procedure is operating as it is intended to operate.

Common features of simulations--generating values from probability distributions,maintaining records,recording data and summarizing results--led to the development of

When events occur at discrete points in time

Simulation

The number of units expected to be sold is uniformly distributed between 300 and 500.If r is a random number between 0 and 1,then the proper expression for sales is

Which of the following statements is INCORRECT regarding the disadvantages of simulation?

Trials of a simulation show what would happen when values of the probabilistic input change.

The process of determining that the computer procedure that performs the simulation calculations is logically correct is called

Simulation is a trial-and-error approach to problem solving.

A simulation model uses the mathematical expressions and logical relationships of the

If customer 2 has a service time of 1.6,and if customer 3 has an interarrival time of 1.1 and a service time of 2.3,when will customer 3's service be completed?

Introduction

Introduction to Probability

Probability Distributions

Decision Analysis

Utility and Game Theory

Forecasting

Introduction to Linear Programming

Lp Sensitivity Analysis and Interpretation of Solution

Linear Programming Applications

Distribution and Network Problems

Integer Linear Programming

Advanced Optimization Application

Project Scheduling: Pertcpm

Inventory Models

Waiting Line Models

Markov Processes

Filters