Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 7, Problem 70P
a)
Summary Introduction
To show: An average of 4,000 people is traveling through road from City NJ to City NY.
Non-linear programming (NLP):
Non-linear programming (NLP) is used in complex optimization problems where the objectives or constraints or sometimes both are non-linear functions of the decision variables. A model can be termed as non-linear for more than one reason.
b)
Summary Introduction
To show: The average travel time per person is minimized if 2,000 people travel by road.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A company possesses two manufacturing plants, each of which can produce three products, X, Y, and Z, from
a common raw material. However, the proportion in which the products are produced differs in each plant,
and so are plant's operating costs per hour. Data on production per hour and costs are given below,
together with current orders in hand of each product.
Products
Operating cost per
hour
Y
Plant A
4
9.
Plant B
4
2
10
Orders on hand
50
24
60
Formulate the above as a linear programming problem. Find the number of production hours needed to
fulfill the orders on hand at minimum cost using the using Big M method.
At a small but growing airport, the local airline company is purchasing a new tractor for a
tractor-trailer train to bring luggage to and from the airplanes. A new mechanized luggage
system will be installed in 3 years, so the tractor will not be needed after that. However,
because it will receive heavy use, so that the running and maintenance costs will increase
rapidly as the tractor ages, it may still be more economical to replace the tractor after 1 or 2
years. The following table gives the total net discounted cost associated with purchasing a
tractor (purchase price minus trade-in allowance, plus running and maintenance costs) at the
end of year i and trading it in at the end of year j (where year O is now).
i
012
1
$13,000
j
2
$28,000
$17,000
3
$48,000
$33,000
$20,000
The problem is to determine at what times (if any) the tractor should be replaced to minimize
the total cost for the tractors over 3 years.
(a) Formulate this problem as a minimum cost flow problem by showing the…
At a small but growing airport, the local airline company is purchasing a new tractor for a
tractor-trailer train to bring luggage to and from the airplanes. A new mechanized luggage
system will be installed in 3 years, so the tractor will not be needed after that. However,
because it will receive heavy use, so that the running and maintenance costs will increase
rapidly as the tractor ages, it may still be more economical to replace the tractor after 1 or 2
years. The following table gives the total net discounted cost associated with purchasing a
tractor (purchase price minus trade-in allowance, plus running and maintenance costs) at the
end of year i and trading it in at the end of year j (where year O is now).
i
B
012
1
$13,000
j
2
$28,000
$17,000
3
$48,000
$33,000
$20,000
The problem is to determine at what times (if any) the tractor should be replaced to minimize
the total cost for the tractors over 3 years.
(a) Formulate this problem as a shortest-path problem by drawing a…
Chapter 7 Solutions
Practical Management Science
Ch. 7.3 - Prob. 1PCh. 7.3 - Prob. 2PCh. 7.3 - Pricing Decisions at Madison The Madison Company...Ch. 7.3 - Prob. 4PCh. 7.3 - Prob. 5PCh. 7.3 - Prob. 6PCh. 7.3 - Prob. 7PCh. 7.3 - Prob. 8PCh. 7.3 - Prob. 9PCh. 7.3 - Prob. 10P
Ch. 7.3 - Prob. 11PCh. 7.3 - Prob. 12PCh. 7.3 - Prob. 13PCh. 7.3 - PRICING SUITS AT SULLIVANS Sullivans is a retailer...Ch. 7.3 - Prob. 15PCh. 7.4 - Prob. 16PCh. 7.4 - Prob. 17PCh. 7.4 - Prob. 18PCh. 7.4 - Prob. 19PCh. 7.4 - Prob. 20PCh. 7.4 - Prob. 21PCh. 7.4 - Prob. 22PCh. 7.4 - Prob. 23PCh. 7.5 - Prob. 24PCh. 7.5 - Prob. 25PCh. 7.5 - Prob. 26PCh. 7.5 - Prob. 27PCh. 7.6 - Prob. 28PCh. 7.6 - Prob. 29PCh. 7.6 - Prob. 30PCh. 7.6 - Prob. 31PCh. 7.6 - Prob. 32PCh. 7.6 - Prob. 33PCh. 7.6 - The method for rating teams in Example 7.8 is...Ch. 7.7 - Prob. 35PCh. 7.7 - Prob. 36PCh. 7.7 - Prob. 37PCh. 7.7 - The stocks in Example 7.9 are all positively...Ch. 7.7 - Prob. 39PCh. 7.7 - Prob. 40PCh. 7.7 - Prob. 41PCh. 7.7 - Prob. 42PCh. 7.8 - Given the data in the file Stock Beta.xlsx,...Ch. 7.8 - Prob. 44PCh. 7 - Prob. 45PCh. 7 - Prob. 46PCh. 7 - Another way to derive a demand function is to...Ch. 7 - Prob. 48PCh. 7 - If a monopolist produces q units, she can charge...Ch. 7 - Prob. 50PCh. 7 - Prob. 51PCh. 7 - Prob. 52PCh. 7 - Prob. 53PCh. 7 - Prob. 54PCh. 7 - Prob. 55PCh. 7 - Prob. 56PCh. 7 - A beer company has divided Bloomington into two...Ch. 7 - Prob. 58PCh. 7 - Prob. 59PCh. 7 - Prob. 60PCh. 7 - Prob. 61PCh. 7 - Prob. 62PCh. 7 - Prob. 63PCh. 7 - You have 50,000 to invest in three stocks. Let Ri...Ch. 7 - Prob. 65PCh. 7 - Prob. 66PCh. 7 - Prob. 67PCh. 7 - Prob. 68PCh. 7 - Prob. 69PCh. 7 - Prob. 70PCh. 7 - Based on Grossman and Hart (1983). A salesperson...Ch. 7 - Prob. 73PCh. 7 - Prob. 74PCh. 7 - Prob. 75PCh. 7 - Prob. 76PCh. 7 - Prob. 77PCh. 7 - Prob. 78PCh. 7 - Prob. 79PCh. 7 - Prob. 80PCh. 7 - Prob. 81PCh. 7 - Prob. 82PCh. 7 - Prob. 83PCh. 7 - Prob. 84PCh. 7 - Prob. 85PCh. 7 - Prob. 86PCh. 7 - Prob. 1.1CCh. 7 - Prob. 1.2CCh. 7 - Prob. 1.3CCh. 7 - Prob. 1.4C
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- Assume the demand for a companys drug Wozac during the current year is 50,000, and assume demand will grow at 5% a year. If the company builds a plant that can produce x units of Wozac per year, it will cost 16x. Each unit of Wozac is sold for 3. Each unit of Wozac produced incurs a variable production cost of 0.20. It costs 0.40 per year to operate a unit of capacity. Determine how large a Wozac plant the company should build to maximize its expected profit over the next 10 years.arrow_forwardSolve the question below using the attached excel templates with formulas for renting both slow and fast copies (labeled in the excel tabs). Question: The Decision Sciences Department is trying to determine whether to rent a slow or a fast copier. The department believes that an employee’s time is worth $15 per hour. The slow copier rents for $4 per hour, and it takes an employee an average of 10 minutes to complete copying. The fast copier rents for $15 per hour, and it takes an employee an average of six minutes to complete copying. On average, four employees per hour need to use the copying machine. (Assume the copying times and interarrival times to the copying machine are exponentially distributed.) Which machine should the department rent to minimize expected total cost per hour?arrow_forward. A group of students organizes a bake sale in which they sell hundreds of cookies at $1per piece. They set up a table on campus and wait for students to come and purchasetheir cookies. Consider the following variables in this bake sale operation:1. Size of the cookies2. Weather conditions on campus3. Organization of the table4. Number of cookies sold5. Competition from other fund-raisers coinciding on campus6. Amount of advertising and shouting of the students at the bake sale table7. Number of students on campus that dayWhich of these variables is an output variable?a. 3b. 4c. 5d. None of the abovearrow_forward
- Describe how a continuous simulation model can benefit the business strategy decisions for your chosen business (Retail store)arrow_forwardThe interContinental Hotel at Tsim Sha Tsui has 100 total rooms available for Dec 31. There are two types of customers, business customers and leisure customers. InterContinental charges a high rate of $300/night and a low rate of $120/night. High-rate guests do not need pre-booking and has time flexibilities; low-rate guests need pre-booking. Assume business customers always take the high rate option and leisure customers always take the low rate option. Leisure customers always book far earlier before business customers and there are sufficient leisure customers. Which of the following actions would increase the optimal protection level for business customers? Increase both the high and low rates by a factor of two Decrease the high rate from $300 to $200 Decrease both the high and low rates by half O Decrease both the high and low rates by $20 O Increase both the high and low rates by $20arrow_forwardDuring an eight-hour shift, 750 non-defective parts are desired as a result of a manufacturing operation. The default operation time is 15 minutes. As the operators of machine are inexperienced, the actual time they take to perform the operation is 20 minutes, and, on average, a fifth of the parts that start to be manufactured are lost. Assuming that each one of the machines used in this operation will not be available for one hour in each shift, determine the number of machines needed.arrow_forward
- 2.28 A foundry produces castings to order. An order for 20 special castings has been re- ceived. Since the casting process is highly variable, not all castings produced are good. The cost of producing each casting is $550; the additional cost of finishing a good casting is $125. If a casting is not good, it is recycled at a value of $75; excess good castings are not finished but are recycled at a value of $75. The customer has agreed to accept 15, 16, 17, 18, 19, or 20 castings at a price of $1250 each. If fewer than 15 good castings are produced, none will be purchased by the customer. Prob- ability distributions for the number of good castings produced in a batch of varying sizes are given below. How many castings should be scheduled in order to maximize expected profit? #Good Castings 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 79 2 PRODUCT, PROCESS, AND SCHEDULE DESIGN Number of Castings Scheduled 15 16 17 0.05 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00…arrow_forwardA group of students organizes a bake sale in which they sell hundreds of cookies at$1 per piece. They set up a table on campus and wait for students to come and purchasetheir cookies. Consider the following variables in this bake sale operation:1. Size of the cookies2. Weather conditions on campus3. Organization of the table4. Number of cookies sold5. Competition from other fund-raisers coinciding on campus6. Amount of advertising and shouting of the students at the bake sale table7. Number of students on campus that dayWhich of these variables are input variables?a. 1 and 2b. 1 and 3c. 1, 3, and 5d. 1, 3, and 6arrow_forwardHMO has 40 doctors to be apportioned among four clinics. The HMO decides to apportion the doctors based on the average weekly patient load for each clinic, given in the following table. Clinic A B C D Average Weekly 275 392 611 724 Patient Load Find the apportion of A and C using using Adam's Method. Use modified divisor 52. Doctors for clinic A Doctors for clinic B = %3D Doctors for clinic C= Doctors for clinic D =arrow_forward
- Please make a comment on the following statement. There are many business applications with linear functions and non-linear functions. Some people think that linear models are particularly of interest due to simplicity and convenience, but some people believe that nonlinear models can simulate business operations better in practice, enabling business professionals to make more accurate decision.arrow_forwardThe world's oceans contain on average of 0.9 oz of Au /ton of ocean water. There were 2 proposed novel process in mineral extraction to recover the Au and they were compared using Engineering Economic Analysis. Process X costs $600/ton of ocean water processed and a recovery of 90%, while Process Z costs $450/ton and a recovery of 60%. Both processes will need the same amount of capital investment and equal ounces of Au extracted daily. If the Au today is $2,200/oz, which process is more feasible considering the fact that the world's ocean can be inexhaustible? This problem requires the analysis to be on the basis of profit per ounce of Au extracted.arrow_forwardA man wants to set up a 529 college savings account for his granddaughter. How much would he need to deposit each year into the account in order to have $70,000 saved up for when she goes to college in 17 years, assuming the account earns a 6% return. Annual deposit: $arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,