Question 1

The main reason that a large number of replications of a simulation would be made is:
A)computers are usually used,and they can easily handle a large number of replications.
B)it is part of the scientific approach.
C)it is a form of sampling,and large samples give more accurate results than small samples.
D)it is more likely to provide optimal answers.
E)None of the above.

Accepted Answer

Replications in simulations are similar to taking samples in real-life experiments. Just as larger samples provide more accurate results in real-life experiments, larger replications provide more reliable results in simulations. This is because different replications can provide different outcomes and taking a larger number of replications helps to reduce the impact of random variation and provide a more accurate estimate of the simulation's behavior.

Question 2

It is always necessary to test the validity of a simulation model by comparing its results with those of an analytic study.

Accepted Answer

It is not always necessary to test the validity of a simulation model by comparing its results with those of an analytic study. There may be situations where comparison with analytic study may not be possible or may not be the most appropriate method of validation. However, comparing with other empirical data or expert knowledge can provide alternate forms of validation.

Question 3

A Data Table can be used to "trick" Excel to perform many replications of a computer simulation.
Multiple Choice Questions

Accepted Answer

By setting up the simulation inputs and outputs in a data table, Excel can automatically perform the simulation for many input combinations, effectively replicating the simulation multiple times.

Question 4

A larger confidence interval is desirable for a measure of performance since it shows that the results are valid over a larger range.

Accepted Answer

A larger confidence interval indicates more uncertainty in the estimate, meaning that the true value could be farther away from the estimated value. A smaller confidence interval indicates greater precision and therefore higher confidence in the estimate.

Question 5

The main procedure for advancing the time on the simulation clock is called next-event time advance.

Accepted Answer

Next-event time advance is the main algorithm used for advancing the time on the simulation clock. It updates the simulation clock to the time of the next event in the event list, which is the next simulation event that changes the state of the system being modeled.

Question 6

Which of the following would not be a probable reason for choosing simulation as a decision-making tool?
A)The situation is too complex for a mathematical model.
B)The is a limited time in which to obtain results.
C)Good results have been obtained in the past using simulation.
D)Users are able to understand the model.
E)All of these are probable reasons for choosing simulation.

Accepted Answer

The answer of Which of the following would not be...

Question 7

Solver Table is used to generate many replications of a computer simulation.

Accepted Answer

Solver Table is used in Excel to perform sensitivity analysis by changing input values and observing the effects on the output, not for generating replications of a computer simulation.

Question 8

Given this frequency distribution,the random number 0.2258 would be interpreted as a demand of: 
A)0.
B)1.
C)2.
D)3.
E)1 or 2.

Accepted Answer

The answer of Given this frequency distribution,the random number 0.2258...

Question 9

With the speed of computers,it is not necessary to limit the amount of factors considered in a simulation.

Accepted Answer

Even with the speed of modern computers, it's necessary to limit the amount of factors in a simulation due to computational constraints, the complexity of models, and the practical limits on time and resources.

Question 10

Animation can be used to display computer simulations in action.

Accepted Answer

Animation can be used to display computer simulations in action by creating a visual representation of the simulation's movement and behavior. This can help users to better understand and analyze the simulation.

Question 11

Figure 
-If a simulation begins with the first random number,the first simulated value would be:
A)0.
B)1.
C)2.
D)3.
E)4.

Accepted Answer

Looking at the table, we can see that the first random number is 2, and the corresponding simulated value is 0. Therefore, the answer is C) 2.

Question 12

A manager is simulating the number of times a machine operator stops a machine to make adjustments.After careful study the manager found that the number of stops ranged from one to five per cycle and that each number of stops was equally likely.Using the random numbers 0.1835 and 0.3094 (in that order),the next two simulated cycles would respectively have stops for adjustment of:
A)2 and 2.
B)1 and 2.
C)2 and 1.
D)1 and 1.
E)2 and 3.

Accepted Answer

The answer of A manager is simulating the number of...

Question 13

Figure 
-If a simulation begins with the first random number,the second simulated value would be:
A)0.
B)1.
C)2.
D)3.
E)4.

Accepted Answer

The values in the simulation follow the sequence 2, 1, 4, 3, 0, 4, 3, 1, 0, 2, 3, 4, 2, 1, 0...and so on. Therefore, if we start with the first random number (2), the second simulated value would be 1.

Question 14

Simulation will often give measures of performance as outputs.

Accepted Answer

Simulation is used to analyze the performance of a system and can provide measures of performance as outputs, such as throughput, utilization, and response time.

Question 15

One key advantage of computer simulation is that is makes full use of the simplifying approximations that are available.

Accepted Answer

The answer of One key advantage of computer simulation is...

Question 16

A simulation model is often formulated in terms of a flow diagram.

Accepted Answer

Flow diagrams are a common tool used to visually represent the flow of entities and processes in a simulation model.

Question 17

A flow diagram shows the output of a simulation run.

Accepted Answer

A flow diagram typically shows the steps in a process or system, but not necessarily the output of a simulation run. The output of a simulation run would typically be displayed in a graph, table, or chart format.

Question 18

Which of the following is not a reason for simulation's popularity?
A)It is simple to use and/or understand.
B)Extensive software packages are available.
C)Many situations are too complex for mathematical solutions.
D)If can be used for a wide range of applications.
E)It is typically an inexpensive approach.

Accepted Answer

Simulation can be costly due to the need for specialized software, extensive data collection, and potentially high computational resources. It is not typically considered an inexpensive approach, especially for complex simulations.

Question 19

In order to generate more accurate results when using simulation:
A)use a continuous distribution instead of a discreet distribution.
B)increase the number of replications.
C)increase the number of factors considered.
D)All of the above.
E)None of the above.

Accepted Answer

Increasing the number of replications in a simulation increases the amount of data collected and can improve the precision of the results. Using a continuous distribution instead of a discrete distribution or increasing the number of factors considered may also be useful in some situations, but these choices are not always necessary for generating more accurate results.

Question 20

Figure 
-If a simulation begins with the first random number,the third simulated value would be:
A)0.
B)1.
C)2.
D)3.
E)4.

Accepted Answer

The first random number is 0. The second simulated value is 0+1=1. The third simulated value is 1+1=2. Therefore, the correct choice is B.

Quiz 14: Computer Simulation: Basic Concepts

The main reason that a large number of replications of a simulation would be made is:

It is always necessary to test the validity of a simulation model by comparing its results with those of an analytic study.

A Data Table can be used to "trick" Excel to perform many replications of a computer simulation. Multiple Choice Questions

A larger confidence interval is desirable for a measure of performance since it shows that the results are valid over a larger range.

The main procedure for advancing the time on the simulation clock is called next-event time advance.

Which of the following would not be a probable reason for choosing simulation as a decision-making tool?

Solver Table is used to generate many replications of a computer simulation.

Given this frequency distribution,the random number 0.2258 would be interpreted as a demand of:

With the speed of computers,it is not necessary to limit the amount of factors considered in a simulation.

Animation can be used to display computer simulations in action.

Figure -If a simulation begins with the first random number,the first simulated value would be:

Figure -If a simulation begins with the first random number,the second simulated value would be:

Simulation will often give measures of performance as outputs.

One key advantage of computer simulation is that is makes full use of the simplifying approximations that are available.

A simulation model is often formulated in terms of a flow diagram.

A flow diagram shows the output of a simulation run.

Which of the following is not a reason for simulation's popularity?

In order to generate more accurate results when using simulation:

Figure -If a simulation begins with the first random number,the third simulated value would be: