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Questions and Answers of
Operations Management
The manager of the Excom Service Station wants to forecast the demand for unleaded gasoline next month so that the proper number of litres can be ordered from the distributor. The owner has
The University Bookstore is owned and operated by Tech University through an independent corporation with its own board of directors. The bookstore has three locations on or near the Tech University
In Exhibit S11.4, shipments are prohibited from Kansas City to Chicago because of railroad construction. Once the rail construction is completed, what will be the effect on the optimal shipping
Systems Unlimited sells personal computers to universities and colleges on the West Coast and ships them from three distribution warehouses. The firm is able to supply the following numbers of
In Problem S11-8, the Samuel McGregor Brewing Company management has negotiated a new shipping contract with a trucking firm between its Moncton brewery and its distributor in Ontario that reduces
The Samuel McGregor Brewing Company has breweries in three cities; the breweries can supply the following numbers of barrels of draft beer to the companys distributors each month:Brewery
In Problem S11-6, what would be the effect on the optimal solution if there were no shortage of rental trucks at the North Bay outlet?Problem S11-6The Carry-Haul Truck Rental firm has accumulated
The Carry-Haul Truck Rental firm has accumulated extra trucks at three of its truck leasing outlets, as shown:Leasing Outlet
A manufacturing firm produces diesel engines in four citiesHamilton, Oshawa, Oakville, and Windsor. The company is able to produce the following numbers of engines per month:Plant
Apples are grown, picked, and then processed and packaged at distribution centres in Mississauga, Niagara Falls, and Simcoe. These centres supply apples to markets in Toronto, Hamilton, Montreal, and
In Problem S11-1, what would be the effect of a reduction in production capacity at the Hamilton location from 310 tons to 260 tons per week?Problem S11-1Steel mills in three cities produce the
Steel mills in three cities produce the following amounts of steel:Location Weekly Production
Discuss some of the disadvantages of North American companies using Chinese suppliers that might drive them to near-shore their supply chains.
Describe the global supply and distribution channels of retail companies like Hudson’s Bay and Sears. What are some of their problems?
Solve Problem 3-9 in Chapter 3 to construct a c-chart to monitor late order deliveries at the Victoria Bread Company.Problem 3-9The Victoria Bread Company daily delivers multiple orders by truck from
The Ashton Furniture Company manufactures coffee tables and chests of drawers. Last year the companys cost of goods sold was $3.7 million, and it carried inventory of oak, pine, stains,
The RX Drug Company manufactures over-the-counter and prescription drugs. Last year the company’s cost of goods sold was $470 million. It carried average raw material inventory of $17.5 million,
The Farmers Bank of Medicine Hat is planning to install a new computerized accounts system. Bank management has determined the activities required to complete the project, the precedence
The following table shows the probabilistic activity time estimates for the CPM/PERT network in Problem 9-9.Determine the following:a. Expected activity timesb. Earliest start and finish timesc.
The following table provides the information necessary to construct a project network and project crash data.a. Construct the project network.b. Determine the maximum possible crash time for the
The Centre for Information Technology at Provincial University has outgrown its office in Bates (B) Hall and is moving to Allen (A) Hall, which has more space. The move will take place during the
The Ontario Ministry of Transportation is undertaking a construction project to widen a large section of high-way near Ottawa, which includes the construction of a number of new bridges,
The Carriage Auto Parts Company near Halifax, Nova Scotia, is a direct supplier for the nearby Sigma auto manufacturing plant. In order to gain a competitive advantage and meet quality requirements
Nite-Site, Inc., manufactures image intensification devices used in products such as night-vision goggles and aviator’s night-vision imaging systems. The primary customer for these products is the
Jericho Vehicles manufactures special-purpose all-terrain vehicles primarily for the military and government agencies in Canada and for foreign governments. The company is planning to bid on a new
How has the increased emphasis on quality improvement affected human resources management in Canada?
How successful have companies in Canada been in adapting new trends in job design that mostly have originated in Japan?
When conducting a work sampling study, how can the number of observations required by the study be reduced?
Puff n Stuff Services is a small company that assembles mailings for clients in the Vancouver area. Different-size envelopes are stuffed with various items such as coupons,
When is work sampling a more appropriate work-measurement technique than time study?
The Konishi Electronics Company manufactures computer microchips. A particular job that has been under analysis as part of a quality-improvement program was the subject of a time study. The time
Data Products, Inc., packages and distributes a variety of personal computer-related products. A time study has been conducted for a job packaging CD-Rs for shipment to customers. The job requires a
The associate dean of the college of business at Poly has succumbed to faculty pressure to purchase a new fax machine, although she has always contended that the machine would have minimal use. She
The head of the department of management at Local University has noticed that the four secretaries in the departmental office seem to spend a lot of time answering questions from students that could
Sweats and Sweaters is a small chain of stores specializing in casual cotton clothing. The company currently has five stores in British Columbia and Alberta, and it wants to open a new store in one
Maureen Desjardins is designing the layout for a new business in town, The Collegiate Spa. From visiting spas in neighbouring towns, she has compiled the following data on movement between spa
Marillion Hospital is building a satellite clinic in the Lakeview area of Regina, Saskatchewan. The design committee has collected data on patient movement from similar facilities in hopes of making
Flying Flags is opening a new theme park in southern Alberta. The park will have seven main attractions: (a) Animal kingdom, (b) Broadway shows, (c) Carousel and other kiddie
What factors make the southern Alberta region an attractive location for service and manufacturing businesses?
What location factors make small cities and towns in southern Ontario attractive to companies?
Exotech Computers manufactures computer components such as chips, circuit boards, motherboards, keyboards, LCD panels, and the like and sells them around the world. It wants to construct a new
Local University is going to construct a new student center and athletic complex that will include a bookstore, post office, theaters, market, mini-mall, meeting rooms, swimming pool, and weight and
Arsenal Electronics is going to construct a new $1.2-billion semiconductor plant and has selected four cities in Ontario as potential sites. The important location factors and ratings for each town
Herriott Hotels, Inc. wants to develop a new beach front resort along the coast of Nova Scotia. A number of sites are available, and the hotel chain has narrowed the choice to five locations. They
Robin Ayanso has recently accepted a new job in Montreal and has been hunting for a condominium to purchase. She has compiled a list of five possible condominium complexes that she could move into.
The city of London, Ontario, operates three hospitals and a number of clinics in its network. It is planning to open a new wellness center and clinic facility that focuses on geriatric clients in one
Local University in Problem S7-3 is attempting to locate the best site for a new student center and athletic complex. The university administration would like to know what the best location is
Purolator wants to build a new distribution center in Regina, Saskatchewan. The center needs to be in the vicinity of uncongested Trans Canada Highway and Ring Road interchanges, and the Regina
Mega-Mart, a discount store chain, wants to build a new superstore in the southwest area of the province near four small towns with populations between 8000 and 42,000. The coordinates (in
Home-Base, a home improvement/building supply chain, is going to build a new warehouse facility to serve its six stores. The coordinates of the stores (in kilometres), using the headquarters of the
An army division in Afghanistan has five troop encampments in the desert. The division leaders want to determine the best location for a supply depot to serve the camps. The (x, y) coordinates (in
The principles of scientific management were not adopted in Japan during the first half of the 20th century as they were in North America and other Western nations. Speculate as to why this occurred.
How do service layouts differ from manufacturing layouts? Give an example of a well-designed service layout and an example of a poorly-designed layout.
Visit a local McDonald’s, Harvey’s, and Taco Bell (or similar establishments). How do their layouts differ? Which appears to be most efficient? Why?
In Problem S7-17, suppose the division commanders are limited to three possible sites for the supply depot because of airfield locations and enemy troop concentrations. The coordinates (in
An alternative airplane design is given here. Follow the assembly instructions and test the airplane. Are the instructions clear? Compare the performance of this airplane design with the one
Read about issues in outsourcing from a search on the Web. Then, look at the website of a company that you buy from to see where their products are made.
Construct a process flowchart of a process with which you are familiar. Identify bottlenecks, potential failure points, and opportunities for improvement.
Patricia Zell, a dollmaker from Regina, SK, is interested in the mass marketing and production of a ceramic doll of her own design called Tiny Trisha. The initial investment required for plant and
David Wojciechowski recently purchased a chain of dry cleaners in northern Alberta. Although the business is making a modest profit now, David suspects that if he invests in a new press, he could
Danielle Galipeau and her design team are analyzing the production costs for three alternative monitor designs. Given the cost information below, and assuming form and function are similar for each
Read about bench marking at Productivity Alberta www.productivityalberta.ca, the American Productivity and Quality Center www.apqc.org, and the Bench marking Exchange www.benchnet.com. What is bench
Access Environment Canada www.ec.gc.caand the Environmental Protection Agency www.epa.govto read about the Canadian and U.S. governments’ commitment to environmental product design. Compare the
Describe Little’s Law in your own words and specify an example where the law applies.
MagTech assembles DVD players from four major components arranged as follows:The components can be purchased from three different ven-dors, who have supplied the following reliability data:a. If
Glen Wong is an emergency medical technician for a local rescue team and is routinely called on to render emergency care to citizens facing crisis situations. Although Glen has received extensive
Students often complain that the requirements of assignments or projects are unclear. From the student’s perspective, whoever can guess what the professor wants wins the highest grade. Thus, grades
Describe the service process for(a) A bank,(b) An air-line, and(c) A lawn service.
List the elements that define a queuing system.
How can a decision maker use the results of queuing analysis for making decisions?
Under what conditions will the single-channel, single-phase queuing model with Poisson arrivals and undefined service times provide the same operating characteristics as the basic model with
Cakes baked by the Freshfood Bakery are transported from the ovens to be packaged by one of three wrappers. Each wrapper can wrap an average of 120 cakes per hour (Poisson distributed). The cakes are
The ticket booth on the Poly campus is operated by one person who is selling tickets for the annual Poly versus Artsy hockey game on Saturday. The ticket seller can serve an average of 12 customers
The Brandon Airport in Manitoba serves light aircraft. It has a single runway and one air traffic controller to land planes. It takes an airplane eight minutes to land and clear the runway
The Canadian Western Bank currently has one out-side drive-up teller. It takes the teller an average of three minutes (exponentially distributed) to serve a bank customer. Customers arrive at the
During registration at Poly every quarter, students in the Faculty of Management must have their courses approved by the departmental adviser. It takes the adviser an average of five minutes
All trucks travelling on the Trans-Canada Highway between Medicine Hat and Calgary are required to stop at a weigh station. Trucks arrive at the weigh station at a rate of 120 per eight-hour day
In Problem 5-8, the head of the Faculty of Management at Poly is considering the addition of a second adviser in the advising office to serve students waiting to have their schedules approved. This
Annie Quan is a nurse on the evening shift from 10:00 p.m. to 6:00 a.m. at Community Hospital. She is responsible for 15 patients in her area. She averages two calls from each of her patients every
Wallace Publishers has a large number of employees who use the company’s single fax machine. Employees arrive randomly to use the fax machine at an average rate of 20 per hour. This arrival process
The Escargot is a small French restaurant with six waiters and waitresses. The average service time at the restaurant for a table (of any size) is 80 minutes (exponentially distributed). The
Erkut’s television-repair service receives an average of four TV sets per eight-hour day to be repaired. The service manager would like to be able to tell customers that they can expect their TV
The Seaboard Shipping Company has a warehouse terminal in Nanaimo, BC. The capacity of each terminal dock is three trucks. As trucks enter the terminal, the drivers receive numbers, and when one of
Drivers who come to get their licences have their photograph taken by an automated machine that develops the photo-graph onto the licence card and laminates the complete licence. The machine requires
A vending machine at Local Airport dispenses hot coffee, hot chocolate, or hot tea in a constant service time of 30 seconds. Customers arrive at the vending machine at a mean rate of 50 per hour,
In Problem 5-20, suppose that Erkut’s television-repair service cannot accommodate more than 10 TV sets at a time (under repair and waiting for service). What is the probability that the number of
Nanaimo, BC, a major seaport on the west coast, has a ship coal-loading facility. Currently, coal trucks filled with coal arrive at the port facility at the mean rate of 149 per day (Poisson
The restaurant at the Art Gallery of Ontario serves a hot buffet cafeteria-style daily to visitors and employees. The buffet is self-service. From 7:00 a.m. to 9:00 a.m., customers arrive at the
The Woodstock Police Department has eight patrol cars that are on constant call 24 hours per day. A patrol car requires repairs every 30 days, on average, according to an exponential distribution.
The local Canada Post office has four stations for service. Customers line up in single file for service on a FIFO basis. The mean arrival rate is 40 per hour, Poisson distributed, and the mean
The Associate Dean in the College of Business at Local University is attempting to determine which of two copiers he should lease for the college’s administrative suite. A regular copier leases for
Judith Huang is a doctoral student at Local University, and she also works full time as an academic tutor for 10 foreign students. She took the job hoping it would leave her with free time between
The Vancouver port is a transportation hub that transfers shipping containers from trucks coming from western seaports to rail cars for shipment to eastern destinations. Containers arrive at the
The Wild Water Kingdom park has a new water ride, the Raging Rapids. The ride holds 36 people in boat-cars and it takes 4.1 minutes to complete the ride circuit. It also takes the ride attendants
The copy centre in the Faculty of Business at Local University has become an increasingly contentious item among administrators. The department heads have complained to the associate dean about
Give an example of a product or service you have encountered that was poorly designed. Read about more bad designs at the bad designs website www.baddesigns.com. Make a list of the factors that make
A department store in Beijing, China, has arranged to purchase specially-designed sweatshirts from a clothing manufacturer in Hong Kong. When the sweatshirts arrive in Beijing in lots of 2000 units,
The Metro Packaging Company in Edmonton produces clear plastic bottles for the Kooler Cola Company, a soft-drink manufacturer. Metro inspects each lot of 5000 bottles before they are shipped to the
Daves Burgers is a fast-food restaurant franchise in Nova Scotia, and Newfoundland and Labrador. Recently, Daves Burgers has followed the lead of larger franchise restaurants
Mark Sumansky owns and manages Green Grass, a lawn-care service located in Kitchener, Ont. His customers include individual homeowners and businesses that subscribe to his service for lawn care
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