What process converts data gathered by secondary or primary methods into data for examination? -
Answers Data entry
_____ contains each variable in the study and specifies the application of mapping rules to the
response codes of each variable. - Answers A coding scheme
The process for verifying that variables have used the designated coding scheme and that all data
collected is entered correctly is called - Answers Data editing
Which of the following components of a linear programming model sets limits on the set of potential
solutions? - Answers Constraints
Which of the following components of a linear programming model is the overall performance
measure? - Answers Objective
Which of the following components of a linear programming model represents the level of each
activity? - Answers Decision variables
Which of the following statements about feasible solutions to a linear programming problem is TRUE?
- Answers The optimal solution will also be a feasible solution.
Which of the following statements about feasible solutions to a linear programming problem is
FALSE? - Answers There will always be at least one feasible solution to any linear programming
problem.
In a linear programming problem, the data cells do which of the following? - Answers Provides
important information about the availability of resource.
In a linear programming problem, the changing cells do which of the following? - Answers Contains
the decisions made about levels of activity.
In a linear programming problem, the output cells do which of the following? - Answers Ensures that
usage of resources does not exceed available supply.
In a linear programming problem, the objective cell does which of the following? - Answers Measures
the performance of candidate solution.
The key identifying feature of a resource-allocation problem is which of the following?
I Constraints with the form "Amount of resource used ≥ Amount of resource available".
II Constraints with the form "Amount of resource used ≤ Amount of resource available".
III Constraints with the form "Level achieved ≥ Minimum acceptable level".
IV All constraints have the form "Amount provided = Required amount". - Answers II only
The key identifying feature of a cost-benefit trade-off problem is which of the following?
I Constraints with the form "Amount of resource used ≥ Amount of resource available".
II Constraints with the form "Amount of resource used ≤ Amount of resource available".
III Constraints with the form "Level achieved ≥ Minimum acceptable level".
IV All constraints have the form "Amount provided = Required amount". - Answers III only
The key identifying feature of a fixed-requirements problem is which of the following?
I Constraints with the form "Amount of resource used ≥ Amount of resource available".
II Constraints with the form "Amount of resource used ≤ Amount of resource available".
III Constraints with the form "Level achieved ≥ Minimum acceptable level".
IV All constraints have the form "Amount provided = Required amount". - Answers IV only
The key identifying feature of a mixed problem is which of the following?
I Constraints with the form "Amount of resource used ≥ Amount of resource available".
II Constraints with the form "Amount of resource used ≤ Amount of resource available".
III Constraints with the form "Level achieved ≥ Minimum acceptable level".
IV All constraints have the form "Amount provided = Required amount". - Answers At least two of II,
III, and IV
Transportation problems can be classified as which type of linear programming problem?
I Resource-allocation problems.
II Cost-benefit-tradeoff problems.
III Fixed-requirement problems. - Answers III only
Assignment problems can be classified as which type of linear programming problem?
I Resource-allocation problems.
II Cost-benefit-tradeoff problems.
III Fixed-requirement problems. - Answers III only
, TRUE or FALSE: A survey timeline indicates the date for activation of the measurement instrument -
Answers True
TRUE or FALSE: Instrument disposition can involve the creation and delivery to a dropbox for paper-
and-pencil instruments. - Answers True
TRUE or FALSE: Participant data entry can increase the accuracy of a data record. - Answers True
TRUE or FALSE: A significant number of "Don't Know" responses to a closed measurement question
may mean that the measurement question failed to include appropriate information. - Answers True
TRUE or FALSE: When cross tabulation is used in confirmatory data analysis for testing purposes, it's
called a contingency table. - Answers False
TRUE or FALSE: Percentages translate the data to a base of 100, paving the way for relative
comparisons between variables. - Answers True
Applications of assignment problems may include: - Answers matching personnel to jobs, assigning
machines to tasks, and designing bussing routes.
Which of the following represents the marginal gain in the objective value that would occur if one
more unit of a resource were added? - Answers Shadow price
The process of determining the effect of changing objective function coefficients, right-hand side
values of constraints, and decision variable values on a linear program is known as - Answers What-if
analysis
For a problem with two decision variables, which of the following statements about what-if analysis is
TRUE?
I. What-if analysis can be done graphically.
II. Solver will generate reports to assist with what-if analysis.
III. Shadow prices will not be valid with only two decision variables. - Answers Only I and II are true
Which of the following statements about what-if analysis is TRUE?
Changes in an objective function coefficient will always lead to changes in decision variable values.
Changes to constraint right-hand side values will always lead to changes in decision variable values.
Changes in an objective function coefficient will never lead to changes in decision variable values.
Changes to constraint right-hand side values will never lead to changes in decision variable values. -
Answers None of the answer choices are correct
A parameter in a linear programming problem is said to be "sensitive" when - Answers small changes
in the parameter lead to changes in the optimal solution.
In robust optimization, a constraint that cannot be violated is known as a - Answers hard constraint
To determine if an increase in an objective function coefficient will lead to a change in final values for
decision variables, an analyst can do which of the following?
I. Compare the increase in the objective function coefficient to the allowable decrease.
II. Compare the increase in the objective function coefficient to the allowable increase.
III. Rerun the optimization to see if the final values change. - Answers II and III
TRUE or FALSE The allowable range for an objective function coefficient assumes that the original
estimates for all the other coefficients are completely accurate so that this is the only one whose true
value may differ from its original estimate. - Answers True
TRUE or FALSE: An optimal solution is only optimal with respect to a particular mathematical model
that provides only a representation of the actual problem. - Answers True
TRUE or FALSE: The purpose of a linear programming study is to help guide management's final
decision by providing insights. - Answers True
TRUE or FALSE: It is usually quite easy to find the needed data for a linear programming study. -
Answers False
TRUE or FALSE: If the optimal solution will remain the same over a wide range of values for a
particular coefficient in the objective function, then management will want to take special care to
narrow this estimate down. - Answers False
TRUE or FALSE: Shadow price analysis is widely used to help management find the best trade-off
between costs and benefits for a problem. - Answers True
TRUE or FALSE: When certain parameters of a model represent managerial policy decisions, what-if
analysis provides information about what the impact would be of altering these policy decisions. -
Answers True