Question 1

Explain the difference between random numbers and random number intervals.

Accepted Answer

Random numbers are a series of digits that have been selected by a totally random process. Random number intervals are numbers used to represent each possible value or outcome in a computer simulation. During simulation, a particular random number is matched against the random number intervals to determine the value for the element being modeled that particular time.

Question 2

The number of tires sold at a car garage varies randomly between 0 and 4 each hour, with equally probability for each possible outcome. What set of random numbers (on the 01-100 scale) would tire sales of 2 be assigned?

Accepted Answer

A)  01 through 20 
B)  21 through 40 
C)  41 through 60 
D)  51 through 75 
E)  26 through 50 
A)  01 through 20 
B)  21 through 40 
C)  41 through 60 
D)  51 through 75 
E)  26 through 50 C

Question 3

In most real-world inventory problems, lead time and demand vary in ways that make simulation a necessity because mathematical modeling is extremely difficult.

Accepted Answer

A) True 
 B)False  True

Question 4

Which of the following are advantages of simulation? I. time compression
II. "what-if?" questions are possible
III. flexibility
IV. repetitive approach
V. input must be user generated

Accepted Answer

A)  I, III, V 
B)  I, II, V 
C)  II, III, IV, V 
D)  I, II, IV, V 
E)  I, II, III 
A)  I, III, V 
B)  I, II, V 
C)  II, III, IV, V 
D)  I, II, IV, V 
E)  I, II, III

Question 5

By starting random number intervals at 01, not 00, the top of each range is the cumulative probability.

Accepted Answer

A) True 
 B)False

Question 6

The effects of operations management policies over many months or years can be obtained by computer simulation in a short time. What is this phenomenon called?

Accepted Answer

A)  time suppression 
B)  time suspension 
C)  time compression 
D)  time inversion 
E)  time conversion 
A)  time suppression 
B)  time suspension 
C)  time compression 
D)  time inversion 
E)  time conversion

Question 7

________ is the attempt to duplicate the features, appearance, and characteristics of a real system, usually via a computerized model.

Accepted Answer

The answer of ________ is the attempt to duplicate the...

Question 8

Simulation is the attempt to duplicate the features, appearance, and characteristics of a real system, usually by means of a computerized model.

Accepted Answer

A) True 
 B)False

Question 9

One of the disadvantages of simulation is that it:

Accepted Answer

A)  does not allow for very complex problem solutions. 
B)  produces solutions and inferences that are not usually transferable to other problems. 
C)  time compression may occur. 
D)  is very limited in the type of probability distributions that can be used. 
E)  interferes with the production system while the program is being run. 
A)  does not allow for very complex problem solutions. 
B)  produces solutions and inferences that are not usually transferable to other problems. 
C)  time compression may occur. 
D)  is very limited in the type of probability distributions that can be used. 
E)  interferes with the production system while the program is being run.

Question 10

Complete the following table in preparation for a Monte Carlo simulation.

Accepted Answer

The answer of Complete the following table in preparation for...

Question 11

Despite the powerful simulation software available today, good simulation models can take a long time to develop.

Accepted Answer

A) True 
 B)False

Question 12

A(n) ________ is the accumulation of individual probabilities of a distribution.

Accepted Answer

cumulative

Question 13

The ________ method is a simulation technique that uses random elements when chance exists in their behavior.

Accepted Answer

The answer of The ________ method is a simulation technique...

Question 14

The Las Vegas method is a simulation technique that uses random elements when chance exists in their behavior.

Accepted Answer

A) True 
 B)False

Question 15

"Time compression" and the ability to pose "what-if?" questions are elements of:

Accepted Answer

A)  setting up a probability distribution for important variables. 
B)  the disadvantages of simulation. 
C)  physical simulations but not mathematical simulations. 
D)  the advantages of simulation. 
E)  the broad threefold idea of simulation. 
A)  setting up a probability distribution for important variables. 
B)  the disadvantages of simulation. 
C)  physical simulations but not mathematical simulations. 
D)  the advantages of simulation. 
E)  the broad threefold idea of simulation.

Question 16

What are the advantages and disadvantages of simulation models?

Accepted Answer

Advantages:
• It can be used to analyze

Question 17

Simulation is used for several reasons, including which of the following?

Accepted Answer

A)  Model development is a fast process. 
B)  The models can usually be solved by hand. 
C)  The models are usually simple. 
D)  It can handle large and complex real-world problems. 
E)  It always generates optimal solutions. 
A)  Model development is a fast process. 
B)  The models can usually be solved by hand. 
C)  The models are usually simple. 
D)  It can handle large and complex real-world problems. 
E)  It always generates optimal solutions.

Question 18

Explain what is meant by the concept of "time compression" in simulation modeling.

Accepted Answer

The effects of OM policies ove

Question 19

Complete the following table in preparation for a Monte Carlo simulation. The expected demand is 3.21.

Accepted Answer

@#IMG-DLM& Students should have only moderate diff

Question 20

A warehouse manager needs to simulate the demand placed on a product that does not fit standard models. The concept being measured is "demand during lead time," where both lead time and daily demand are variable. The historical record for this product suggests the following probability distribution. Convert this distribution into random number intervals.

Accepted Answer

The answer of A warehouse manager needs to simulate the...

Exam 22: Simulation

Explain the difference between random numbers and random number intervals.

The number of tires sold at a car garage varies randomly between 0 and 4 each hour, with equally probability for each possible outcome. What set of random numbers (on the 01-100 scale) would tire sales of 2 be assigned?

In most real-world inventory problems, lead time and demand vary in ways that make simulation a necessity because mathematical modeling is extremely difficult.

Which of the following are advantages of simulation? I. time compression II. "what-if?" questions are possible III. flexibility IV. repetitive approach V. input must be user generated

By starting random number intervals at 01, not 00, the top of each range is the cumulative probability.

The effects of operations management policies over many months or years can be obtained by computer simulation in a short time. What is this phenomenon called?

________ is the attempt to duplicate the features, appearance, and characteristics of a real system, usually via a computerized model.

Simulation is the attempt to duplicate the features, appearance, and characteristics of a real system, usually by means of a computerized model.

One of the disadvantages of simulation is that it:

Complete the following table in preparation for a Monte Carlo simulation.

Despite the powerful simulation software available today, good simulation models can take a long time to develop.

A(n) ________ is the accumulation of individual probabilities of a distribution.

The ________ method is a simulation technique that uses random elements when chance exists in their behavior.

The Las Vegas method is a simulation technique that uses random elements when chance exists in their behavior.

"Time compression" and the ability to pose "what-if?" questions are elements of:

What are the advantages and disadvantages of simulation models?

Simulation is used for several reasons, including which of the following?

Explain what is meant by the concept of "time compression" in simulation modeling.

Complete the following table in preparation for a Monte Carlo simulation. The expected demand is 3.21.

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Material Requirements Planning Mrp and Erp

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