Final

Question 1

A___ probability is the altered marginal probability of an event based on additional information

Answer 1

posterior

Question 2

A dummy activity is used to show a precedence relationship, but it does not represent a:

Answer 2

passage of time

Question 3

A shadow price reflects which of the following in a maximization problem?

Answer 3

the marginal gain in the objective that would be realized by adding one unit of a resource

Question 4

A single-bay car wash with a Poisson arrival rate and an exponential service time has cars arriving at an average of 10 minutes apart with an average service time of 4 minutes. What is the system utilization

Answer 4

0.4

Question 5

A single-server queuing system has average time between arrivals of 20 minutes and a service time of 10 minutes each. Assuming Poisson arrivals and exponential service times, the utilization factor is approximately:

Answer 5

0.50

Question 6

Administrators at a university will charge students $150 to attend a seminar. It costs $3000 to reserve a room, hire an instructor, and bring in the equipment. Assume it costs $25 per student for the administrators to provide the course materials. How many students would have to register for the seminar for the university to break even?

Answer 6

24

Question 7

Bayesian analysis involves a(n) ________ probability

Answer 7

posterior

Question 8

Cars arrive at a single-bay car wash at an average of 6 per hour according to the Poisson distribution. The wash time averages 4 minutes per car. What is the average number of cars in line?

Answer 8

.267

Question 9

Given an actual demand of 59, a previous forecast of 64, and an alpha of .3, what would the forecast for the next period be using simple exponential smoothing?

Answer 9

62.5

Question 10

If t is the expected completion time for a given activity, then

Answer 10

EF=ES + t

Question 11

If the daily demand is 50 and the lead time in days is 4, what is the reorder point?

Answer 11

200

Question 12

In a balanced transportation model where supply equals demand:

Answer 12

all constraints are equalities

Question 13

In multiple-server models, ________ independent servers in parallel serve a single waiting line.

Answer 13

2 or more

Question 14

Regret is the difference between the payoff from the:

Answer 14

best decision and all other decision payoffs

Question 15

The Hurwicz criterion multiplies the:

Answer 15

best payoff by the coefficient of optimism

Question 16

The LS and LF are calculated using the:

Answer 16

backward pass through the network

Question 17

The critical path is the ___ path through the network

Answer 17

longest

Question 18

The first step in the shortest route solution method is to:

Answer 18

select the node with the shortest direct route from the origin

Question 19

The first step of the minimal spanning tree solution method is to:

Answer 19

select any starting node

Question 20

The maximax criterion results in the:

Answer 20

maximum if the maximum payoffs

Question 21

The maximin criterion results in the:

Answer 21

maximum of the minimum payoffs

Question 22

The minimal spanning tree problem determines the:

Answer 22

minimum total branch lengths connecting all nodes in the network

Question 23

The minimax regret criterion:

Answer 23

minimizes the maximum regret

Question 24

The shipping company manager wants to determine the best routes for the trucks to take to reach their destinations. This problem can be solved using the:

Answer 24

shortest route solution technique

Question 25

The term opportunity loss is closely related to:

Answer 25

minimax regret

Question 26

What is not considered a measure of system performance in a queuing analysis?

Answer 26

service time

Question 27

Which of the following will not decrease system utilization?

Answer 27

increase in arrival rate

Question 28

_____ is the difference between the forecast and actual demand

Answer 28

Forecast error