Question 1

"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 2

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

Question 3

Simulation provides optimal solutions to problems.

Accepted Answer

A) True 
 B)False

Question 4

Random number intervals are based on cumulative probability distributions.

Accepted Answer

A) True 
 B)False

Question 5

The seven steps in the use of simulation include all but which of the following?

Accepted Answer

A)  define the problem 
B)  construct a mathematical model 
C)  introduce important variables associated with the problem 
D)  find the optimal solution 
E)  run the experiment 
A)  define the problem 
B)  construct a mathematical model 
C)  introduce important variables associated with the problem 
D)  find the optimal solution 
E)  run the experiment

Question 6

A distribution of service times at a waiting line indicates that service takes 12 minutes 30 percent of the time and 14 minutes 70 percent of the time. Prepare the probability distribution, the cumulative probability distribution, and the random number intervals for this problem.

Accepted Answer

The answer of A distribution of service times at a...

Question 7

From a portion of a probability distribution, you read that P(demand = 0) is 0.05, P(demand = 1) is 0.10, and P(demand = 2) is 0.20. The two-digit random number intervals for this distribution beginning with 01 are

Accepted Answer

A)  01 through 05, 01 through 10, and 01 through 20 
B)  00 through 04, 05 through 14, and 15 through 34 
C)  01 through 05, 06 through 15, and 16 through 35 
D)  00 through 04, 00 through 09, and 00 through 19 
E)  01 through 06, 07 through 16, and 17 through 36 
A)  01 through 05, 01 through 10, and 01 through 20 
B)  00 through 04, 05 through 14, and 15 through 34 
C)  01 through 05, 06 through 15, and 16 through 35 
D)  00 through 04, 00 through 09, and 00 through 19 
E)  01 through 06, 07 through 16, and 17 through 36

Question 8

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.
 $$\begin{array}{l}
\text { Demand during lead time Probability }\
\begin{array} { | c | c | } 
\hline 100 & .02 \
\hline 120 & .15 \
\hline 140 & .25 \
\hline 160 & .15 \
\hline 180 & .13 \
\hline 200 & .30 \
\hline
\end{array}
\end{array}$$

Accepted Answer

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

Question 9

A distribution of service times at a waiting line indicates that service takes 6 minutes 30 percent of the time, 7 minutes 40 percent of the time, 8 minutes 20 percent of the time, and 9 minutes 10 percent of the time. In preparing this distribution for Monte Carlo analysis, the service time 8 minutes would be represented by the random number range

Accepted Answer

A)  20 through 40 
B)  21 through 40 
C)  70 through 90 
D)  71 through 90 
E)  none of these 
A)  20 through 40 
B)  21 through 40 
C)  70 through 90 
D)  71 through 90 
E)  none of these

Question 10

One of the advantages of simulation is that

Accepted Answer

A)  it is much less expensive than a mathematical solution 
B)  it always generates a more accurate solution than a mathematical solution 
C)  it can study the interactive effects of individual components or variables 
D)  model development is less time consuming than for mathematical models 
E)  model solutions are transferable to a wide variety of problems 
A)  it is much less expensive than a mathematical solution 
B)  it always generates a more accurate solution than a mathematical solution 
C)  it can study the interactive effects of individual components or variables 
D)  model development is less time consuming than for mathematical models 
E)  model solutions are transferable to a wide variety of problems

Question 11

A(n) __________ is a series of digits that have been selected by a totally random process.

Accepted Answer

The answer of A(n) __________ is a series of digits...

Question 12

Explain what is meant by "simulation is not limited to using the standard probability distributions."

Accepted Answer

"Standard models" include normal, binomi

Question 13

A waiting-line problem that cannot be modeled by standard distributions has been simulated. The table below shows the result of a Monte Carlo simulation. (Assume that the simulation began at 8:00 a.m. and there is only one server.
 $$\begin{array} { | c | c | c | c | } 
\hline \text { Customer Number } & \text { Arrival Time } & \text { Service Time } & \text { Service Ends } \
\hline 1 & 8 : 06 & 2 & 8 : 08 \
\hline 2 & 8 : 07 & 10 & 8 : 18 \
\hline 3 & 8 : 12 & 10 & 8 : 28 \
\hline 4 & 8 : 24 & 11 & 8 : 39 \
\hline 5 & 8 : 30 & 5 & 8 : 44 \
\hline
\end{array}$$ 
a. What is the average waiting time in line?
b. What is the average time in the system?

Accepted Answer

(a) Waiting time is 0 + 1 + 6

Question 14

State the three-fold idea behind simulation.

Accepted Answer

The three-fold idea behind simulation is

Question 15

A distribution of service times at a waiting line indicates that service takes 12 minutes 30 percent of the time and 14 minutes 70 percent of the time. Prepare the probability distribution, the cumulative probability distribution, and the random number intervals for this problem. The first six random numbers were 99, 29, 27, 75, 89, and 78. What is the average service time for this simulation run?

Accepted Answer

@#IMG-DLM& The average service

Question 16

What is the Monte Carlo method?

Accepted Answer

The Monte Carlo method is a si

Question 17

Identify five applications of simulation.

Accepted Answer

The five applications of simulation can

Question 18

All forms of simulation are based on probability or chance.

Accepted Answer

A) True 
 B)False

Question 19

What are the advantages and disadvantages of simulation models?

Accepted Answer

Advantages:
• Simulation is relatively s

Question 20

The numbers used to represent each possible value or outcome in a computer simulation are referred to as __________ .

Accepted Answer

random-num

Exam 26: Simulation

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

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

Simulation provides optimal solutions to problems.

Random number intervals are based on cumulative probability distributions.

The seven steps in the use of simulation include all but which of the following?

A distribution of service times at a waiting line indicates that service takes 12 minutes 30 percent of the time and 14 minutes 70 percent of the time. Prepare the probability distribution, the cumulative probability distribution, and the random number intervals for this problem.

From a portion of a probability distribution, you read that P(demand = 0) is 0.05, P(demand = 1) is 0.10, and P(demand = 2) is 0.20. The two-digit random number intervals for this distribution beginning with 01 are

One of the advantages of simulation is that

A(n) __________ is a series of digits that have been selected by a totally random process.

Explain what is meant by "simulation is not limited to using the standard probability distributions."

State the three-fold idea behind simulation.

What is the Monte Carlo method?

Identify five applications of simulation.

All forms of simulation are based on probability or chance.

What are the advantages and disadvantages of simulation models?

The numbers used to represent each possible value or outcome in a computer simulation are referred to as __________ .

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