What is the cumulative probability distribution of the following variable?
A) 1
B) .5
C) 10
D) .2
E) none of the above
The president of a consulting firm wants to minimize the total number of hours it will
take to complete four projects for a new client. Accordingly, she has estimated the time
it should take for each of her top consultants — Charlie, Gerald, Johnny, and Rick — to
complete any of the four projects, as follows:
a. In how many different ways can she assign these consultants to these projects?
b. What is the total number of hours required by the following arbitrary assignment?
Charlie–>B; Gerald–>A; Johnny–>D; Rick–>C
c. What is the optimal assignment of consultants to projects? (Use the assignment
method; SHOW YOUR WORK!)
d. For the optimal schedule, what is the total number of hours it will take these
consultants to complete these projects?
e. What is the significance, if any, of the fact that Gerald is the best performer at all four
projects?
A firm can effectively use its operations function to yield competitive advantage
through all of the following except
A) customization of the product
B) setting equipment utilization goals below the industry average
C) speed of delivery
D) constant innovation of new products
E) maintaining a variety of product options
Which of the following is not information needed for a transportation problem?
A) the cost of shipping one unit from each origin to each destination
B) the set of destinations and the demand at each
C) the set of origins and the demand at each origin
D) the list of sources and the capacity at each
E) None of the above is needed.
A forecast with a time horizon of about 3 months to 3 years is typically called a
A) long-range forecast
B) medium-range forecast
C) short-range forecast
D) weather forecast
E) strategic forecast
A document calls for the production of 50 small garden tractors in week 1; 50 small
garden tractors and 100 riding mowers in week 2; 100 riding mowers and 200 garden
utility carts in week 3; and 100 riding mowers in week 4. This document is most likely
a(n)
A) net requirements document
B) resource requirements profile
C) aggregate plan
D) master production schedule
E) Wagner-Whitin finite capacity document
When depot service is compared to operator maintenance,
A) operator maintenance is slower than depot service
B) competence is higher, but costs may also be higher, with depot service
C) depot service is often the weak link in the chain because of the lack of specific
training
D) depot service occurs on-site, while operator maintenance occurs off-site
E) depot service is better for systems connected in parallel, while operator maintenance
is preferred for systems connected in series
One dollar saved in purchasing is
A) equivalent to a dollar earned in sales revenue
B) worth even more than a dollar earned in sales revenue
C) worth slightly more than a dollar earned because of taxes
D) worth from 35% in the technical instrument industry to 70% in the food products
industry
E) only worthwhile if you are in the 50% tax bracket and still have a low profit margin
In sensitivity analysis, a zero shadow price (or dual value) for a resource ordinarily
means that
A) the resource is scarce
B) the resource constraint was redundant
C) the resource has not been used up
D) something is wrong with the problem formulation
E) none of the above
The last four weekly values of sales were 80, 100, 105, and 90 units. The last four
forecasts were 60, 80, 95, and 75 units. These forecasts illustrate
A) qualitative methods
B) adaptive smoothing
C) slope
D) bias
E) trend projection
A production line is to be designed for a product whose completion requires 21 minutes
of work. The factory works 400 minutes per day. Can an assembly line with five
workstations make 100 units per day?
A) yes, with exactly 100 minutes to spare
B) no, but four workstations would be sufficient
C) no, it will fall short even with a perfectly balanced line
D) yes, but the line’s efficiency is very low
E) cannot be determined from the information given
Which of the following is not a typical service attribute?
A) intangible product
B) easy to store
C) customer interaction is high
D) simultaneous production and consumption
E) difficult to resell
Adding a complementary product to what is currently being produced is a demand
management strategy used when
A) demand exceeds capacity
B) capacity exceeds demand for a product which has stable demand
C) the existing product has seasonal or cyclical demand
D) price increases have failed to bring about demand management
E) efficiency exceeds 100 percent
A queuing model which follows the M/M/1 assumptions has » = 2 and ¼ = 3. The
average number in the system is
A) 2/3
B) 1
C) 1.5
D) 2
E) 6
Which of the following is an advantage of the FCFS dispatching rule when used in
services?
A) FCFS is easy to update.
B) FCFS minimizes the average number of jobs in the system.
C) FCFS minimizes the average lateness of all jobs.
D) FCFS maximizes the number of jobs completed on time.
E) FCFS seems fair to customers.
Given the following data, find the expected breakdown cost. The cost per breakdown is
$100.
A work cell is required to make 200 computerized diagnostic assemblies (for
installation into hybrid automobiles) each day. The cell currently works an eight hour
shift, of which seven hours is available for productive work. What is takt time for this
cell?
Explain the importance of a bottleneck operation in a production sequence.
__________ is the use of a component in parallel to raise reliabilities.
__________ involves timing a sample of a worker’s performance and using it as a basis
for setting a standard time.
An organization that has worked to achieve global uniformity in cultural and ethical
issues such as bribery, child labor, and environmental regulations is __________.
A small manufacturer builds wooden pleasure boats in a craftsman manner by
traditional labor-intensive methods. The first boat is estimated to take 650 hours of
skilled labor, which cost $40 per hour. They currently have three workers that can work
2,000 hours a year. They assume that there is a 90% learning rate. How many boats can
they make in their first year?
Identify two operations-related tasks carried out by Hard Rock Caf©. Match each to its
area of the Ten Critical Decisions.
What is the feasible region in a linear programming problem?