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introduction to management science 13th

Questions and Answers of Introduction To Management Science 13th

An airline company operates a fleet of airplanes. If it buys an airplane, it can be run up to three years. For safety reasons, the plane should be replaced at the end of the third year. The airline
Etisalat provides e-life home entertainment services to residents of Dubai through high-speed underground cables. Assume that the current network shows the distance between neighborhoods in
As part of Dubai Development Plan, Roads and Transport Authority (RTA) plans to connect malls and recreational places through public transport. It has identified 10 such places whose locations are
FedEx has its main office in City 1. It has six offices in different commercial areas. FedEx advises its local pick up agents not to visit its central collection office to drop the picked-up parcels
An oil well in Abu Dhabi (source) must pump oil from Abu Dhabi to Al Ain (Destination) through existing pipelines passing through several cities along its way. Since these pipelines are constructed
The Columbus Civic Club is planning to put on a 5K race to raise money to build children’s playgrounds. The club has identified the following planning activities and time estimates:Construct the
Liu and Fong is a global supplier of denim jeans for apparel companies around the world. Its supply chain includes cotton production in the United States, fabric manufacturing in Southeast Asia and
A project has eight activities with their associated predecessors as given in the following table.Construct the CPM/PERT network for this project and determine the project schedule. Identify the
A project has six activities on arcs as shown in the diagram. The values on the arcs are the duration of activities in days.a. Formulate a linear programming model for this project.b. Find the
Katherine Miller is a senior in the department of information technology at Tech. For the past few months she has been involved in the job search process. She has an excellent résumé, with a high
Each November the Baseball Writers’ Association of America (BBWAA) releases its list of that year’s nominees for induction into the National Baseball Hall of Fame in Cooperstown, New York. There
A company wants to produce two products, A and B, using three resources—machine hours, raw material, and assembly time—as given in the table below.The company wants to satisfy the following
Suntrek is a global denim fabric and jeans manufacturer. It purchases raw, baled cotton from locations around the world (primarily the United States and Mexico) and ships it (in containers) to
Six Sigma is a well-recognized quality management system that employs improvement projects to improve business processes to reduce product and service defects, reduce costs, and increase profits.
A bakery specializes in cupcakes and chocolate cookies. The bakery estimates that cupcakes will account for 75% of its total sales, whereas chocolate cookies will account for 25% of its total sales.
A petroleum refinery in Dubai wants to expand its refinery and stock-yard for the expected surge in the oil prices in the coming years. The company has four distinct activities in its strategic
A state government plans to set up new police stations for the public. The state has seven districts (A through G). Each police station can serve a radius of 30 miles. A district may receive service
Onions are considered an indispensable ingredient in most of Indian cooking. Maximum onion production takes place in the state of Maharashtra (4.90 million tons) followed by Karnataka (2.59 million
South Africa is one of the largest coal producing and exporting countries in the world. A company dealing with coal sources coal from four coalfields—Highveld, Emalehleni, Ermelo, and Klip River.
A business undergraduate student must register for the next semester on or before the drop date. The student meets instructors and assesses potential grades and study-hour requirements. There are
A welder fabricates steel doors, gates, and tables using cutting and welding machines. He has 200 units of steel, 630 processing hours of cutting machine, and 600 hours of welding machine. He earns a
A farmer owns 150 acres of land and plans to sow wheat, rice, and corn. He can use the storage facility of the government but must reserve the space before planting crops. He receives water free from
A car manufacturer has production plants in Germany, the United Kingdom, and France, and it exports cars to several other countries. The manufacturer’s supply chain includes manufacturers,
Ahmed owns camels and sells camel milk in cans. A can will hold 3 liters of milk. To market his products, he brands his products as High-Vitamin and Low-Fat. Camel milk is processed with liquid-based
A study conducted on four brands of computers resulted in the following comparison matrix. The factors considered are the speed of processing (1), storage capacity (2), after sales service (3), and
The Dynaco Manufacturing Company is to build a new plant to make ring bearings (used in automobiles and trucks). The site selection team is evaluating three sites, and it has graded the important
A state university interviewed three candidates (A, B, C) for a faculty position in the department of decision sciences. The university selects the best candidate based on education (Ed), experience
An undergraduate student of decision sciences wants to buy a mobile. He mainly focuses on three criteria: cost, battery life, and features. He has finalized three models of phones (M1, M2, and M3).
A European oil exploration company wants to relocate its design center to the UAE as part of company’s consolidation strategy. The following pairwise matrix was developed to evaluate the
Check the pairwise comparison in Problem 30 for consistency.Data from Problem 30Pearson plans a surprise summer vacation gift to its employees. When the publisher revealed the idea, the excited
Pearson plans a surprise summer vacation gift to its employees. When the publisher revealed the idea, the excited employees explored three perfect destinations for their summer getaway: Isle of Skye,
A Non-Resident Indian (NRI) wants to buy an apartment in India to use it when he returns home. He considers four factors—climate, infrastructure, resale value, and services—to make his decision.
An interior design and construction company produces two types of tiles—floor tiles and wall tiles. Floor tiles are made with slightly rough surface to make it non slippery; whereas wall tiles are
An investment firm received ₹120,000 from a client for investment. The firm has identified six options and their expected returns are as given in the following table. Each option needs a minimum
An oil refinery pumps thousands of barrels of crude and refines it to produce fuels. The refinery must plan its production for the next four months to meet its expected demand. The monthly production
A healthcare company plans to open its new chain of clinics in seven cities (1 to 7) within its earmarked budget. The population size (in thousands) in cities and associated investment budgets are
Sobha Real Estate Company constructs residential apartments in several countries. It plans to evaluate the worthiness of five potential construction sites over the next three years and choose the
A carpenter makes tables and chairs from wood and steel. His store has 200 units of wood and 200 units of steel. Each table requires 5 units of wood and 2 units of steel, whereas each chair requires
A truck manufacturer has three manufacturing plants and four retail outlets. The details of the demand at outlets, supply at plants, and the cost to transport between plants and outlets in lakhs (a
Customers call an airline call center to book seats. There are three divisions in the airline call center, one for booking first class seats, one for booking business class seats, and one for booking
The Suntrek Company is a global apparel retailer with stores around the world. It manufactures many of its clothing items in China and transports them by rail and truck to four ports on the
A political party wants to campaign for the forthcoming elections. The party has planned to allocate party volunteers to the four constituencies the party plans to contest in. Each volunteer visits
Samsung sells its four flagship products—cell phones, TVs, computing devices, and memory storage devices—through its exclusive showroom in a city. To support sales, it has hired 20 persons and
An industrial machinery manufacturer produces shapers and drill presses. The manufacturer forecasts that the demand for shapers for the next month will be at least 5 and the demand for drill presses
A family has some rose plants in its garden. The family wants to use a fertilizer in their garden. To prepare the fertilizer, the family needs to blend two chemicals (1 and 2). These chemicals
An interior design and construction company produces two types of tiles—floor tiles and wall tiles. Floor tiles are made with slightly rough surface to make it nonslippery, whereas wall tiles are
Two coffee house chains, Startrak and Mill Mountain, dominate the Columbus market. Startrak has developed three new marketing strategies, 1, 2, and 3, for the fall season, which include various
Air Jet operates flights between Delhi and Darjeeling, a tourist destination, which takes approximately 2 hours. Pilots report to duty based on where they were hired. For example, if a pilot, David,
A water theme park plays seven games depending on the demand during weekdays and weekends. The park earns revenues (in thousands of euros) from playing these games and the revenue varies with the
Carillon Health Systems owns three hospitals, and it wants to determine which, if any, of the hospitals are inefficient. The hospital inputs each month are (1) hospital beds (100s), (2) nonphysician
Tidewater City Bank has four branches with the following inputs and outputs:The monthly output and input values for each bank are as follows:Using data envelopment analysis (DEA), determine which
Suzuki Motors is a leading car manufacturer in India manufacturing cars at its Gurgaon facility.Suzuki Motors has manufactured 500 cars. These cars are to be transported to its customers in Vizag and
A confectionary store is producing two types of candies: Bulk chocolate and Mini sticks candies. Both of these candies use chocolate liquor, butter, and sugar. Currently the store has 25 lb of
An apparel company wants to popularize its products by contacting its prospective customers. The company sets a target of contacting at least 500 men, 400 women, 300 children, and 420 schools. The
A furniture company produces tables, chairs, and sofas. The company uses lumber, fabric, and glass to produce these products. Labor performs the cutting, sanding, and assembly operations. The
Alexis is in the first year of her undergraduate program. Her father has contributed £25,000 toward her education. From this amount she must pay her tuition for the first three years and she expects
The head of the Department of Business Analytics at Tech is determining faculty teaching schedules for the department’s 10 faculty members for next semester. There are 20 course sections scheduled
A fast food restaurant in Dubai needs white and dark meat to produce patties and burgers. Cost of a kg of white meat is AED10 and dark meat is AED7. Patties must contain exactly 60% white meat and
A greenhouse farmer plans to grow three crops—cucumber, potato, and tomato—in the forthcoming season in his farm, which spans 60 hectares. Each crop requires nitrogen, phosphoros, potassium, and
Guanming wants to paint houses and commercial buildings during his summer vacation. He has two types of customers—residential and commercial. The profit from a residential property is HKD500 and
A manufacturer produces stationeries—binder clips, pencils, erasers, and sharpeners—and packs them in boxes. A box of binder clips will have 12 pieces of binding clips; a pencil box, 12 pencils;
a. In Problem 50, if the pottery company determines that the profit from dining ware was £15 instead of £10, how does that affect the optimal solution?b. If the pottery company could secure
A pottery company produces three types of products from clay: dining ware, sanitary ware, and floor tiles. The company has a stock of 500 kg of clay. A dining ware needs 2 kg of clay, sanitary ware,
a. In Problem 42, the capacity of the college is 3,000 students. If the university plans to increase the capacity of the college to 3,500, should the college accept this expansion? Explain.b. Analyze
The college of business of a large university offers six major programs and set the tuition as tabulated.The college plans to admit a total of 3,000 students in all the six majors with at least 200
Solve the linear programming model formulation in Problem 27 for the farmer using computer.a. If the farmer has access to additional 50 acres of land, would it be beneficial for him to use the
A farmer plans to cultivate rice and wheat in his 200 acres of land. To get a decent profit, he has to use at least 150 acres of land. Per the environmental agency’s recommendation, for each acre
Indians drink lassi during the summer because of its cooling properties. It is made from yogurt, and fruit juices are added to have different flavors. Strawberry lassi consists of yogurt and
Solve the linear programming model formulation in Problem 21 for the for London Fashions using computer.a. If the firm could reduce the minimum ad requirements for TV or print media, which should it
Solve the linear programming model formulation in Problem 21 for London Fashions graphically.a. Determine the sensitivity ranges for the cost of TV.b. Does the company give any more print media ads
London Fashions specializes in the design and delivery of apparels. To improve its sales, the company puts ads on TV and print media. TV channels play the video clip of an ad for 60 seconds and
Solve the linear programming model formulation in Problem 15 for the Patel brothers using the computer.a. If the authorities allow the brothers to plant a minimum of 20 acres with onion, should they
Formulate a linear programming model to this problem.Solve the linear programming model formulation in Problem 15 for the Patel brothers graphically.a. How many acres of land was cultivated at the
Patel brothers have 50 acres of farmland on the banks of River Ganges. They plan to grow tomatoes and onions. Since onions requires less water, the irrigation authority wants the brothers to
Solve Problem 9 graphically.a. How many hours of the cutter’s time are used? Does it have any leftover time?b. If the fitter is able to reduce the cost of product A from €8 to €6 and product B
Whitney Eggleston has quit her job in retail sales and has moved back into her parent’s house with the idea of starting an online home decor business. She plans to purchase items like decorative
Ahmed wants to earn some extra pocket money while on his summer break, which is 5 weeks long. He plans to work for three days a week and enjoy his vacation the rest of the week. He has identified
A fitter produces two types of fitting products—product A and product B—using a cutting machine (cutter) and a grinding machine (grinder). Product A requires 4 hours of the cutter and 8 hours of
In problem 20, the production process for making pizzas that Benny’s Big Slice Pizza uses is very labor intensive. Benny is considering a more automated process design that requires the purchase of
A university student, Benny Orsini, is planning to open a walk-in pizza restaurant near campus that he will call Benny’s Big Slice Pizza. He will have limited seating and will sell two kinds of
David from Problem 16 is now concerned as the market demand does not look very promising, and he may not be able to sell more than the breakeven volume. Therefore, instead of buying brand new
David wants to be an entrepreneur after his graduation. He is interested in toy manufacturing. After conducting market research, he estimates that his initial investment to buy brand-new toy
A car manufacturing company has its manufacturing plants in Chennai and Mumbai in India. The company transports its cars from these manufacturing plants to its distribution centers located in
Ed Norris has developed a Web site for his used textbook business at State University. To sell advertising, he needs to forecast the number of site visits he expects in the future. For the past 6
IREA multinational group designs and sells ready-to-assemble furniture, kitchen appliances, and home accessories. It has multiple sections, each section focusing on different home areas such as
On the UAE national day, children wear new clothes with the national flag embroidered on them. A tailor has three weeks before the national day and plans to work for up to 40 hours per week for the
In Problem 30, how much additional profit would the restaurant realize each week if it increased its freezer capacity to accommodate 20 extra gallons total of ice cream and yogurt?Data From Problem
In Problem 25, what would be the effect on the solution if the constraint x2 ≤7 were changed to x2 ≥ 7?Data From Problem 25Solve the following linear programming model graphically:
In Problem 16:a. If Amelia works 35 hours weekly, will she make more money?b. If the admissions office reduces Amelia’s wage to £8 per hour, and restaurant raises the wage to £9 per hour, and
Amelia wants to do a part time job during her spring break. She has two jobs now—one in an admissions office and the other in a nearby restaurant. She does not want to work for more than 40 hours
a. How much iron and labor will be unused if the optimal number of windows and doors are produced?b. Explain the effect on the optimal solution of changing the profit on a window from € 500 to €
A metal shop fabricates windows and doors to construction companies. To fabricate these, the shop uses iron, glass, and labor. The company has 80 units of standard size iron, glass, and labor. The
The Youth Cricket Club of a small city has a team of 20 members. The club provides professional coaching to its members. The club needs a budget of $75,000 every year to support its team and to pay

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