Unlock document.
This document is partially blurred.
Unlock all pages and 1 million more documents.
Get Access
The Wiethoff Company has a contract to produce 10,000 garden hoses for a customer.
Wiethoff has four XOAXOAerent machines that can produce this kind of hose. Because
these machines are from XOAXOAerent manufacturers and use XOAXOAering
technologies, their specifications are not the same and not all four machines have to be
used to produce all of the garden hoses.
This problem requires two different kinds of decision variables. Clearly define each
kind.
A fair die is rolled nine times. What is the probability that an odd number (1, 3, or 5)
will occur less than 3 times?
Two psychology majors, in two different sections of Clinical Psychology, were
comparing test scores. The following gives the students' scores, class mean, and
standard deviation for each section:
Section 1 Section 2Student score 84 75
Mean 75 60
Standard deviation 7 8
The weight of a loaf of bread is normally distributed with a mean of 22 oz and a
standard deviation of 0.5 oz. What is the probability that a loaf is between 20.75 and
23.25 oz?
Ashley's manufactures home furnishings for department stores. Planning is underway
for the production of the following items during the next production period:
Quilts (x1) Blinds (x2) Pillows (x3)Fabric required (yards) (d1) 7 4 9
Time required (hours) (d2) 1.5 2 0.5
Packaging material (ounces) (d3) 3 2 1
Profit (d4) 12 10 8
Ashley has 3000 yards of material in stock for this production period. Five hundred
hours of production time are scheduled and 400 ounces of packaging material is
available. Each of these quantities can be adjusted through overtime or extra purchases.
Ashley's highest priority is to achieve a profit of $3200. Her second priority is to avoid
additional purchases of packaging material. Third, she wants to use all of the scheduled
production hours, and fourth, minimize any fabric remaining from the 3000 yards. Note
that the deviational variables associated with each item are given in the table.What is
the production time constraint?
1.5x1 + 2x2 + 0.5x3 + d2
The local operations manager for the IRS must decide whether to hire one, two, or three
temporary workers. He estimates that net revenues will vary with how well taxpayers
comply with the new tax code.
If he uses the maximin criterion, how many new workers will he hire?
Participants eligible for a retraining program can be in one of four states:
A - not in the training program
B - discharged
C - in training
D - employed
Given the following transition matrix, determine the fundamental matrix.
________ are the movements or fluctuation in demand that exhibit no pattern and occur
on a random basis.
Annual demand for a paperback dictionary at the bookstore is 1200 units. Ordering
costs are 350, carrying costs are $6 per unit per year, and the lead time is 9 days. The
bookstore is open for 300 days of the year. What is the reorder point?
The manager is open to suggestions for forecasting models and decides to try both an
exponential smoothing model with an alpha of 0.9 and exponential smoothing with an
alpha of 0.3. He decides to use the actual value for January as the forecast for February
just to get the exponential smoothing forecasting party started. Generate forecasts for
the year using these technique and then calculate forecast errors using MAD to
determine which is the superior method in this scenario.
One of the properties of the ________ distribution is that the probability of success
remains constant over time.
Use the following table to answer the question(s) below.
What decision should be made under minimax regret?
Consider the following linear programming problem:
MIN Z = 2x1 + 3x2
Subject to: x1 + 2x2 ≤ 20
5x1 + x2 ≤ 40
4x1 + 6x2 ≤ 60
x1 , x2 ≥ 0
What is the optimal solution?
A production process requires a fixed cost of $50,000 and the variable cost per unit is
$25. The revenue per unit was projected to be $45, but a recent marketing study shows
that because of an emerging competitor, the revenue will be about 12% lower. How
does this affect the break-even point?
Kushie's Coffee in Bangalore is a quaint establishment nestled near MG Road in the
central business district. It serves coffee and fruit cake to a clientele that has been
enjoying these products for over fifty years. The demand for coffee beans is 6600 cases
per year (each case has 24 ten-pound bags). It would be disastrous for them to run out
of coffee, so they keep a safety stock of 30 cases. The cases cost $4800 and it costs $5
per case to order coffee. As coffee is a perishable product, the holding cost is fairly high
at $40/case/year. The lead time to receive an order is seven days. Kushie's is open 300
days a year.
What is their cost for holding all types of inventory if they order optimally?
A ________ network model could be used to represent the capacity of a series of dams
for flood control.
