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operations management

Questions and Answers of Operations Management

Subway, with more than 27,000 outlets in the U.S., is planning for a new restaurant in Buffalo, New York. Three locations are being considered. The following table gives the factors for each site.a)
Some people would say that Oliver Munday, Hard Rock’s vice president for cafe development, has the best job in the world. Travel the world to pick a country for Hard Rock’s next cafe, select a
Purchasing manager Susie Robinson has been asked to analyze the bids for 200 polished disks used in solar panels. These bids have been submitted by three suppliers: Thailand Polishing, India Shine,
From its first Red Lobster in 1968, the chain has grown to 675 locations, with over $1.6 billion in U.S. sales annually. The casual dining market may be crowded, with competitors such as Chili’s,
LaToya Clarendon, the manager of a metropolitan branch office of the state department of motor vehicles, attempted to analyze the driver’s license-renewal operations. She had to perform several
When Orlando’s Arnold Palmer Hospital began plans to create a new 273-bed, 11-story hospital across the street from its existing facility, which was bursting at the seams in terms of capacity, a
Amazing Electronics Distributors wishes to select a new location for its first European warehouse. The location will be selected from the set of four potential candidate countries. The five KSF
Global Publishing is going to add two additional distribution centers. One center will be located in each of two countries selected from the set of four candidates. The four potential countries and
With ambitious expansion plans, Lufthansa Airlines has decided it needs a second service hub in Germany to complement its large Frankfurt repair facility. The location selection is critical, and with
Snow-Bird Hospital is a small emergency-oriented facility located in a popular ski resort in Northern Michigan. Its new administrator, Mary Lord, decides to reorganize the hospital using the
When President Bob Collins began his career at Wheeled Coach, the world’s largest manufacturer of ambulances, there were only a handful of employees. Now the firm’s Florida plant has a workforce
How could Muther’s Grid be used in an office layout?
Amelio Rodriguez Computing wants to establish an assembly line for producing a new product, the Personal Digital Assistant (PDA). The tasks, task times, and immediate predecessors for the tasks are
Explain the concept of cross-docking.
Create Muther’s Grid (see Figure 9.8) for a company that has three departments: Tooling, Warehousing, and Painting. It is “important” that Tooling be near Painting, “not desirable” that
Carlos Torres’ company wants to establish an assembly line to manufacture its new product, the iStar phone. Carlos’ goal is to produce 60 iStars per hour. Tasks, task times, and immediate
Advanced Ergonomics has developed a new automated desktop that raises and lowers electronically (so a person using a computer can work standing or sitting). Its assembly line must produce 80 desktop
An assembly plant for the Blood Pressure RX, a portable blood pressure device, has 400 minutes available daily in the plant for the device, and the average demand is 80 units per day. Final assembly
The American car battery industry boasts that its recycling rate now exceeds 95%, the highest rate for any commodity. However, with changes brought about by specialization and globalization, parts of
Frito-Lay, the massive Dallas-based subsidiary of PepsiCo, has 55 plants and 55,000 employees in North America. Seven of Frito- Lay’s 41 brands exceed $1 billion in sales: Fritos, Lay’s, Cheetos,
The $100 billion firm Uber Technology, Inc., has unsettled the traditional taxi business. In over 84 countries and 900 cities around the world, Uber and similar companies are challenging the existing
Apply the 10 OM decisions to Amazon.
In its 50-plus years of existence, Hard Rock has grown from a modest London pub to a global power managing 185 restaurants, 25 hotels, and 12 casinos. This puts Hard Rock firmly in the service
This year, Druehl, Inc., will produce 57,600 hot water heaters at its plant in Delaware in order to meet expected global demand. To accomplish this, each laborer at the plant will work 160 hours per
Airline passengers today stand in numerous lines, are crowded into small seats on mostly full airplanes, and often spend time on taxiways because of air-traffic problems or lack of open gates. But
In the simulation of an order policy for drills at Simkin's hardware (Example F2, pp. 787-789), would the results (of Table F.7) change significantly if a longer period were simulated? Why is the
IBM asked SMT and one other, much larger company to bid on 80 more units of a particular computer product. The RFQ (request for quote) asked that the overall bid be broken down to show the hourly
Automobiles arrive at the drive-through window at the downtown Baton Rouge, Louisiana, post office at the rate of 4 every 10 minutes. The average service time is 2 minutes. The Poisson distribution
In Solved Problem C.1, Williams Auto Top Carriers proposed opening a new plant in either New Orleans or Houston. Management found that the total system cost (of production plus distribution) would be
Solve the following linear program graphically:Minimize cost = X₁ + X₂
Deborah Hollwager, a concessionaire for the Amway Center in Orlando, has developed a table of conditional values for the various alternatives (stocking decisions) and states of nature (size of
Deborah Kellogg buys Breathalyzer test sets for the Winter Park Police Department. The quality of the test sets from her two suppliers is indicated in the following table:
Discuss the differences between decision making under certainty, under risk, and under uncertainty.
What is the reliability of the system shown?
What is the trade-off between operator-performed maintenance versus supplier-performed maintenance?
Given the following information about a product at Michael Gibson's firm, what is the appropriate setup time?
Discount-Mart (see Problem 16.5), as part of its new JIT program, has signed a long-term contract with Specialty Lighting and will place orders electronically for its halogen lamps. Ordering costs
What are the characteristics of just-in-time partnerships with respect to suppliers?
What is JIT?
The massive 875,000-square-foot Amway Center in Orlando, Florida, is a state-of-the-art sports entertainment center. While it is the home of the Orlando Magic basketball team, it is a flexible venue
Hill's operations manager (see Problems 13.3 through 13.5) is also considering two mixed strategies for January- August: Produce in overtime or subcontracting only when there is no inventory.➤
Prepare a graph of the monthly forecasts and average forecast demand for Chicago Paint Corp., a manufacturer of specialized paint for artists.
In the photo on page 410, Tim Nelson's job as an inspector for La-Z-Boy is discussed. Tim is expected to inspect 130 chairs per day.a) If he works an 8-hour day, how many minutes is he allowed for
Refer to Problem 10.13.a) If the allowance factor is 15%, what is the standard time for this operation?b) If the allowance factor is 18% and the performance rating is now 90%, what is the standard
Draw an activity chart (a crew chart similar to Figure 10.6) for a concert (for example, Tim McGraw, Linkin Park, Lil' Wayne, or Bruce Springsteen) and determine how to put together the concert so
Explain the concept of cross-docking.
An American consulting firm is planning to expand globally by opening a new office in one of four countries: Germany, Italy, Spain, or Greece. The chief partner entrusted with the decision, L. Wayne
What are the three steps to locational cost-volume analysis?
What factors affect region/community location decision?
In this chapter, we have discussed a number of location decisions. Consider another: United Airlines announced its competition to select a town for a new billion-dollar aircraft-repair base. The
As manager of the St. Cloud Theatre Company, you have decided that concession sales will support themselves. The following table provides the information you have been able to put together thus
The electronics firm in Problem $7.23 is now considering the new equipment and increasing the selling price to $1.10 per unit. With the higher-quality product, the new volume is expected to be 45,000
Southeastern Oklahoma State University's business program has the facilities and faculty to handle an enrollment of 2,000 new students per semester. However, in an effort to limit class sizes to a
What is efficiency?
What roles do operations mangers play in addressing the major aspects of service quality.
Southwestern University (SWU), a large state college in Stephenville, Texas, enrolls close to 20,000 students. The school is a dominant force in the small city, with more students during fall and
What is time-based competition?
The number of auto accidents in Athens, Ohio, is related to the regional number of registered automobiles in thousands (X1), alcoholic beverage sales in $10,000s (X2), and rainfall in inches (X3).
Refer to Solved Problem 4.1.a) Using the trend projection (regression) method, develop a forecast for the sales of Volkswagen Beetles in Nevada through year 6.b) What is the MAD?c) What is the MSE?
Refer to Solved Problem 4.1 on page 138.a) Use a 3-year moving average to forecast the sales of Volkswagen Beetles in Nevada through year 6.b) What is the MAD?c) What is the MSE?
Use exponential smoothing with a smoothing constant of 0.3 to forecast the registrations at the seminar given in Problem 4.10. To begin the procedure, assume that the forecast for year 1 was 5,000
The following gives the number of pints of type B blood used at Woodlawn Hospital in the past 6 weeks:
The following gives the number of pints of type B blood used at Woodlawn Hospital in the past 6 weeks:
Southwestem University (SWU), a large state college in Stephenville, Texas, 30 miles southwest of the Dallas/Fort Worth metroplex, enrolls close to 20,000 students. In a typical town-gown
Using AOA, diagram the network described below for Lillian Fok's construction project. Calculate its critical path. How long is the minimum duration of this network?
The text provides three primary strategic approaches (differentiation, cost, and response) for achieving competitive advantage. Provide an example of each not given in the text. Support your choices.
The text provides three primary strategic approaches (differentiation, cost, and response) for achieving competitive advantage. Provide an example of each not given in the text. Support your choices.
What global operations strategy is most descriptive of McDonald's?
Given in the discussion of Southwest Airlines in the text, define an operation strategy for that firm now that it has purchased AirTran
Define strategy.
Hard Rock brings the concept of the "experience economy" to its cafe operation. The strategy incorporates a unique "experience" into its operations. This innovation is somewhat akin to mass
Regal Marine, one of the U.S.'s 10 largest power-boat manufacturers, achieves its mission providing luxury performance boats to custom- ers worldwide-using the strategy of differentiation. It
As a manufacturer of athletic shoes whose image-indeedperformance is widely regarded as socially responsible, you findyour costs increasing. Traditionally, your athletic shoes have beenmade in
In its 42 years of existence, Hard Rock has grown from a modest London pub to a global power managing 150 cafes, 13 hotels/casinos, and live music venues. This puts Hard Rock firmly in the service
Briefly describe the contributions of the four individuals identified in the preceding question.
Newmarket International Manufacturing Company (NIMCO) was founded by Marcia Blakely only two years after leaving graduate school. Her knowledge of mass customization was the driving force behind
WAI, the company in Problem 8, has received the following additional customer orders shown here. You must determine which of the orders the company can accept. If the company must reject any orders,
WAI knows from historical records that approximately 40 percent of its labor is used in Department 101 and 60 percent is used in Department 102. The reverse is true of machine time; 60 percent is
WAI uses two resources for each product that it builds: direct labor and machine time. From historical records,WAI calculates the following planning factors:Direct labor for standard corkscrew is
DDKC has decided to change its replenishment policy. Instead of producing 72 or 120 kites each order, DDKC has reduced its MPS order quantity to 48 kites.(a) Develop an MPS using 48 kites as the
In an effort to reduce setup frequency, DDKC has decided to use an MPS order quantity of 120 kites. (See Problem 1 for data.)(a) Prepare the MPS using the new order quantity.(b) Calculate the ending
David’s Delightful Kites Company (DDKC) manufactures kites. The most popular is David’s Daredevil model. Demand management has prepared forecast estimates for the next six weeks. Beginning
Discuss how the MPS might be used in a service organization.
Discuss how the MPS might be used in a service organization.
Explain the changes you can make in the slushy portion of the MPS and who authorizes such changes.
Explain the changes you can make in the frozen portion of the MPS and who must authorize such changes.
Describe the role of time fence policies.
Explain the importance of rough-cut capacity planning in the MPS process.
Explain the process of developing an authorized MPS.
Discuss the objectives of the master scheduler and how they influence master scheduling decisions.
Describe the different sources of demand.
Describe the inputs needed to do master production scheduling.
Visit a local business and learn how it calculates its resources.
Melanie is very concerned about the number of customers waiting in line. Given the information in Problem 7, calculate how high the customer arrival rate can increase without the average number of
Business continues to grow at Clean Machine. Melanie has decided to use a second car washing bay, staffed with another identical two-person team. Clean Machine will now use a single-line,
As usual, Melanie then requested you to calculate system characteristics concerning customer time spent in the system.(a) Calculate the average time a customer spends in the system.(b) Calculate the
After Melanie added another car washer at Clean Machine (service rate is an average of 16 customers per hour), business improved. Melanie now estimates that the arrival rate is 12 customers per hour.
Melanie is curious to see the difference in waiting times for customers caused by the additional server added in Problem 3. Calculate the following system characteristics for her:(a) The average time
If Melanie adds an additional server at Clean Machine car wash, the service rate changes to an average of 16 cars per hour. The customer arrival rate is 10 cars per hour. Melanie has asked you to
If Melanie adds an additional server at Clean Machine car wash, the service rate changes to an average of 16 cars per hour. The customer arrival rate is 10 cars per hour. Melanie has asked you to

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