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1) Table 12-6
Customers arrive at coffee shop at a rate of 40 per hour. There are 2 servers available
and it takes an average of 1 minute to serve each customer.
Using Table 12-6, what is the average number of customers waiting in line?
A) 0.0833
B) 0.5
C) 0.75
D) 1.33
E) 2
2) Table 11-2
The following represents a project with four activities. All times are in weeks.
According to the data in Table 11-2, what is the minimum expected completion time for
the project?
A) 18
B) 19
C) 37
D) 11
E) None of the above
3) The origin or beginning node in a network is called
A) home.
B) delta.
C) source.
D) mouth.
E) sink.
4) Given three alternatives and their total weighted evaluation, which action should be
selected?
A) Alternative A
B) Alternative B
C) Alternative C
D) Alternative A or Alternative C
E) None of the above
5) If two events are mutually exclusive, then
A) their probabilities can be added.
B) they may also be collectively exhaustive.
C) the joint probability is equal to 0.
D) if one occurs, the other cannot occur.
E) All of the above
6) Consider the following constraints from a linear programming problem:
2X + Y =<200
X + 2Y =<200
X, Y=< 0
If these are the only constraints, which of the following points (X,Y) cannot be the
optimal solution?
A) (0, 0)
B) (0, 200)
C) (0,100)
D) (100, 0)
E) (66.67, 66.67)
7) From an Analytic Hierarchy Process analysis, » is computed to be 4.123, n = 4, RI =
0.9. Compute the consistency index.
A) 4.5811
B) 1.0308
C) 0.0456
D) 0.0410
E) None of the above
8) In a goal programming problem with two goals at the same priority level, all the
deviational variables are equal to zero in the optimal solution. This means
A) there is no feasible solution to the problem.
B) all goals are fully achieved.
C) nonlinear programming must be used to solve this.
D) this problem was an integer programming problem.
E) None of the above
9) In Table M8-8, which cell should be filled on the next iteration?
Table M8-8
A) A1
B) ADummy
C) B2
D) C1
E) C2
10) The p-chart would be useful when we
A) took a number of measurements and computed the average.
B) took a number of measurements and computed the ranges.
C) found the fraction of the production lot defective.
D) found the number of defective items in a production lot.
E) None of the above
11) Customers arrive at a bank at a rate of 50 per hour. The bank has 3 tellers and on
average, it takes 2 minutes to service a customer.
(a) What proportion of time are the tellers busy?
(b) What is the average number of customers in the bank?
(c) What is the average weight time?
12) Another name for a 0-1 variable is a(n) ________ variable.
A) either-or
B) binary
C) yes-no
D) quadratic
E) on-off
13) Which of the following techniques involves the study and consolidation of
historical data for a business and an industry?
A) descriptive analytics
B) prescriptive analytics
C) predictive analytics
D) management science
E) operations research
