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1) Enrollment in a particular class for the last four semesters has been 120, 126, 110,
and 130 (listed from oldest to most recent). Develop a forecast of enrollment next
semester using exponential smoothing with an alpha = 0.2. Assume that an initial
forecast for the first semester was 120 (so the forecast and the actual were the same).
A) 118.96
B) 121.17
C) 130
D) 120
E) None of the above
2) The only restriction we place on the initial solution of a transportation problem is
that
A) we must have nonzero quantities in a majority of the boxes.
B) all constraints must be satisfied.
C) demand must be less than supply.
D) we must have a number (equal to the number of rows plus the number of columns
minus one) of boxes that contain nonzero quantities.
E) None of the above
3) Postoptimality analysis is most closely associated with
A) collecting input data.
B) developing a model.
C) sensitivity analysis.
D) writing a computer program.
E) None of the above
4) Which of the following is not classified as a qualitative forecasting model?
A) exponential smoothing
B) Delphi method
C) jury of executive opinion
D) sales force composite
E) consumer market survey
5) There are six cities (City 1-City 6) serviced by a particular bus line. Limited routes
are available, and the distance for each of these routes is presented in the table below.
If dynamic programming were used to solve for the minimum distance from City 1 to
City 6 above, how many stages would there be?
A) 6
B) 5
C) 4
D) 3
E) 2
6) Which of the following is not part of the transportation algorithm?
A) northwest corner rule
B) stepping-stone method
C) balanced transportation table
D) portfolio selection
E) Hungarian method
7) Which of the following is not considered nonlinear programming?
A) nonlinear objective and nonlinear constraints
B) linear objective with nonlinear constraints
C) nonlinear objective with linear constraints
D) binary decision variable with nonlinear constraints
E) integer decision variable with linear constraints
8) Queuing Theory makes use of the
A) normal probability distribution.
B) uniform probability distribution.
C) binomial probability distribution.
D) Poisson probability distribution.
E) None of the above
9) Which of the following statements provides the best guidance for model building?
A) If the value of r2 increases as more variables are added to the model, the variables
should remain in the model, regardless of the magnitude of increase.
B) If the value of the adjusted r2 increases as more variables are added to the model, the
variables should remain in the model.
C) If the value of r2 increases as more variables are added to the model, the variables
should not remain in the model, regardless of the magnitude of the increase.
D) If the value of the adjusted r2 increases as more variables are added to the model, the
variables should not remain in the model.
E) None of the statements provide accurate guidance.
10) Table M7-3
According to Table M7-3, which is the final simplex tableau for a linear programming
problem (maximization), what would happen to profits if the X1 column were selected
as the pivot column and another iteration of the simplex algorithm were performed?
A) Total profits would increase.
B) Total profits would decrease.
C) An infeasible solution would be found.
D) Another optimal solution would be found.
E) None of the above
11) In a(n) ________ state, you cannot go to another state in the future.
A) transition
B) equilibrium
C) prison
D) locked
E) absorbing
12) Table 13-5
According to Table 13-5, which presents a summary of the Monte Carlo output from a
simulation of 200 runs, there are 5 possible values for the variable of concern. If
random numbers between 01 and 100 are used to generate values, then a random draw
of 72 would produce a variable value of
A) 0
B) 1
C) 2
D) 3
E) 4
13) A vendor selling newspapers on a street corner is an example of a
A) single-channel, multiphase system.
B) single-channel, single-phase system.
C) multichannel, multiphase system.
D) multichannel, single-phase system.
E) None of the above
14) Pipeline fluid flows are indicated below. Determine the maximum flow from Node
1 to Node 3.
A) 100
B) 400
C) 500
D) 700
E) None of the above
15) Cars arrive at a local JLUBE franchise at the rate of 1 every 12 minutes. Service
times are exponentially distributed with an average of 15 minutes. Jack Burns, the
JLUBE owner, has decided to open a second work bay, i.e., make the shop into a
two-channel system. Under this new scheme, the average customer will wait in line
A) approximately 9.6 minutes.
B) approximately 2.5 minutes.
C) approximately 24.6 minutes.
D) approximately 2.1 minutes.
E) None of the above
16) Table M7-3
According to Table M7-3, which is the final simplex tableau for a problem with two
variables and two constraints, the 0.667 in the X1 column means that
A) to produce 1 unit of X1, 0.667 units of X2 must be given up.
B) to produce 1 unit of X2, 0.667 units of X1 must be given up.
C) if 1 unit of X1 is produced, profits on X2 will decrease by 0.667.
D) if 1 unit of X1 is produced, profits on X2 will increase by 0.667.
E) None of the above
17) Which of the following statements is true regarding a scatter diagram?
A) It provides very little information about the relationship between the regression
variables.
B) It is a plot of the independent and dependent variables.
C) It is a line chart of the independent and dependent variables.
D) It has a value between -1 and +1.
E) It gives the percent of variation in the dependent variable that is explained by the
independent variable.
18) In revising the opportunity cost table of the assignment problem, after drawing lines
through all of the zeros,
A) the smallest uncovered number is added to all zeros.
B) the smallest uncovered number is added to all uncovered numbers.
C) the largest uncovered number is added to all uncovered numbers.
D) the smallest uncovered number is added to all numbers at the intersection of lines.
E) the largest uncovered number is added to all numbers at the intersection of lines.
19) =
A)
B)
C)
D)
E) None of the above
