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business
operations management

Questions and Answers of Operations Management

Melanie realizes that how long the customer must wait is also very important. She is also concerned about customers balking when the waiting line is too long. Using the arrival and service rates in
Melanie is the manager of the Clean Machine car wash and has gathered the following information. Customers arrive at a rate of eight per hour according to a Poisson distribution. The car washer can
Describe any disadvantages of using waiting line models.
On your next trip to the Division of Motor Vehicles, evaluate its waiting line system.
Visit your local bank and observe the waiting line system. Describe the system in terms of number of lines, number of facilities, and number of phases.
Explain how the design of a waiting system can negatively affect customers.
Describe a situation in your daily life that could be improved by waiting line analysis.
Describe the implications for customer service and server skills when a multiserver, multistage waiting line system is used.
Describe the implications for customer service and server skills when using a single-line, multiserver, single-phase waiting line system.
Describe the implications for customer service and server skills when using a single-line, single-server, single-phase waiting line system.
Describe the operating performance characteristics calculated for evaluating waiting line systems.
Provide examples of when a single-line, single-server, single-phase waiting line system is appropriate.
Describe the elements of a waiting line system.
A1 Credit provides credit information to its customers throughout the country, 24 hours per day. Credit representatives answer customer calls and provide information. Based on demand patterns, the
Northwest Pipe (NP) makes water pipe. NP is planning production for the next seven months,March through September. The forecast demands (in thousands of feet) are, respectively, 40, 60, 70, 80, 90,
FiberTech makes newsprint for newspapers at three mills, A, B, and C. The cost of producing newsprint is estimated to be $210 at mill A, $225 at B, and $220 at C. Five primary geographical markets
A company has three manufacturing plants (in Atlanta, Tulsa, and Springfield) that produce a product that is then shipped to one of four distribution centers. The three plants can produce 13, 18, and
Montana Pulp (MP) produces recycled paperboard by combining four grades of recycled paper stock. Each grade of stock has a different strength, color, and texture. The strength, color, and texture of
DynaTune is trying to determine how to allocate its $145,000 advertising budget for a new product. Radio and television are the two media outlets selected for advertising. The following table shows
Why is it important to conduct sensitivity analysis after solving an optimization problem?
Explain the meaning of binding and nonbinding constraints.
When specifying the Target Cell, Changing Cells, and Constraints to Solver, why is it important to use only cell references rather than fixed numbers?
Think of a company you are familiar with. Describe at least three problems the company faces that could be addressed, at least in part, through optimization. The problems can be either strategic or
Describe a recent decision you made that could be viewed from an optimization perspective. In a few words, what were the “decision variables”? What was the objective? What were the constraints?
What are the three main elements of an optimization problem? Give an example of each.
When are tables of numbers useful in the decision-making process? When are graphs of those numbers useful?
Why is it important to use absolute and relative cell references?
What are absolute and relative cell references?
Give an example (besides the one used in the text) of when using a Data Table would be helpful.
Give an example (besides the one used in the text) of when using Goal Seek would be helpful.
Explain the steps of the spreadsheet modeling process.
Discuss the importance of a model being well documented.
Discuss the importance of model flexibility.
Give an example of a decision-making situation in which you used a mathematical or spreadsheet model.
Give an example of a decision-making situation in which you used a mental model.
Give an example (besides the ones noted in the text) of a mental model, a visual model, and a mathematical or spreadsheet model.
Your Internet challenge is to help plan the 50th wedding anniversary party described at the beginning of this chapter. Use the list of activities that were identified for the party preparation and
CII wants to launch a new onboard telemedicine procedure, and the project is time-critical. You need to provide project management assistance to Susan Petersen in CII’s marketing department as well
Two professors of operations management, Susan and Chris, have decided to write a new textbook for use in the undergraduate introductory operations management course. As they discuss the project,
Using the information given, calculate the replenishment time when no beginning inventory exists.
As a world-class fan of major league baseball, you have always wanted to watch a game in person at each of the ballparks across the country. Now that you are about to graduate, you have decided it is
You are meeting with Wilhelm Schmidt, the Cruise Ship First Engineer, to help him with a maintenance scheduling problem. He needs help in assigning each of the six maintenance workers to specific
Your university’s Department of Hospitality Management hosts several gourmet dinners throughout the year. To show how OM concepts are useful in the service industry, the department has asked you to
Bob Bristol wants you to examine the possible benefits from implementing an ERP system. Since planning and coordination of a wide range of resources is critical to CII, Bob believes that an ERP
Jay Brown (J.B. to his friends) is a student at the Northwest Culinary Institute and specializes in preparing elaborate desserts. After graduation, J.B. wants to open up a bakery. The bakery,
Aggregate planning identifies the resources needed by operations during a specified time period. Once these resources have been authorized, operations must make do or justify any deviations from the
You are meeting today with Monita Terazzi, the Head of Housekeeping. She wants you to help her develop an 18-month staffing plan for the floor supervisors, head room supervisors, cabin stewards/
Marcia Blakely, plant manager at the Newmarket International Manufacturing Company (NIMCO), was preparing for a meeting with her management team. Joining her would be Jack Novak, the company
Describe the different sources of demand.
Visit a local business and learn how it calculates its resources.
Your nonprofit club holds a major fund-raiser for two weeks each year to support community improvement projects. The club sells packages of cookies throughout the community and donates the proceeds.
In this assignment you will work with Andrew Jaworski, the cruise ship’s Medical Officer. He has a special offer from a supplier for a disposable syringe filled with a premeasured dosage of
You have been chosen to head up the development of an e-commerce direct retail site for your company. Since this is new to both you and your company, you need to gather some initial information. You
You have been asked to work with Monita Terazzi, the head of Housekeeping Services. She is concerned about the high turnover rate among cabin stewards/stewardesses within her department. Currently,
The law firm of DJ and Associates has just moved into a new facility. The spacious reception space has room for three receptionists and a client waiting area. The law firm has hired you to help with
Your next assignment will be with the Cruise Director, Jacqueline Downs. She is concerned that passengers start their cruise vacation in a good frame of mind. Therefore, she is quite concerned about
EDS is a national distributor of office supplies that delivers goods to department and specialty stores. It is planning to build a large distribution center in your state and is analyzing different
Bob Bristol just called to congratulate you on your excellent work on the various assignments at CII.He now wants you to do some capacity analysis for Meghan Willoughby, the Chief Purser. Meghan is
You have been hired by a government agency to collect and analyze economic data and generate economic forecasts. Since you do not have much experience in this area, your manager, Ms. Hernandez, has
In this assignment you will focus on forecasting demand for cruises in different geographical regions. CII is trying to determine which regions have faster-growing demand so that they can be sure to
Truck-Fleet, Inc. is a small company that offers domestic logistics services such as distribution management and transportation management. Truck-Fleet owns a small fleet of trucks and offers
Bob Bristol just called to congratulate you on your supply chain management report. It was very well received by the CII management team. Meghan Willoughby, Chief Purser aboard the Friendly Seas I,
To gain business experience, you have volunteered to work at Safe-Air, a nonprofit agency that monitors airline safety records and customer service. Your first assignment is to compare three airlines
For this assignment, you will work again with Meghan Willoughby, Chief Purser. This assignment involves analyzing some of the data collected through our Quality Improvement Teams. While CII is
You have recently taken a position with Snyder Bakeries, a producer of a variety of different types of baked goods that are packaged and sold directly to grocery chains. Snyder Bakeries has been in
For this assignment, you will work again with Meghan Willoughby, Chief Purser aboard the Friendly Seas I. You know the assignment has something to do with quality, but you aren’t quite sure what.
Since the Internet provides access to products around the world, your challenge involves some global shopping. This year you have been given a budget of $10,000 to furnish and decorate your
Bob Bristol, your boss at CII, just called to tell you that he was impressed with your progress thus far in familiarizing yourself with operations at CII—both the strategic details pertaining to
You have just taken a position with Country Comfort Furniture, a furniture manufacturer known for its custom-designed country furniture. The primary focus of the company has been on kitchen and
Now that you have learned something about the big picture at CII, you believe it is time to learn some specifics. You call Bob Bristol to report your progress and ask for the details of your next
Visit the Web sites of at least one service and one manufacturing company. For each company, identify at least five characteristic OM decisions and show your results in a table. Which decisions are
You will be an intern for Cruise International, Inc. (CII). The company competes in the cruise industry in the small-ship, medium-ship, and large-ship markets. Your internship begins in a few weeks.
Select two companies in the same industry, either in service or in manufacturing. You can select industries such as fast-food, banking, healthcare, computer manufacturing, or auto manufacturing. Use
After a few minutes on hold, you hear Bob Bristol begin speaking on the phone. “Hello,” he begins. “I understand that you wanted to let me know about your progress and needed some additional
Find a company you are familiar with and explain how it uses its operations management function. Identify what the company is doing correctly. Do you have any suggestions for improvement?
Examine the list of Fortune magazine’s top 100 companies. Do most of these companies have anything in common? Are there industries that are most represented?
Find an article that relates to operations management in either the Wall Street Journal, Fortune, or Business Week. Come to class prepared to share with others what you learned in the article.
Define work breakdown structure. How is it used?
Prepare a house of quality for a mousetrap. Effective luring . Reliable • Foolproof • Kills quickly Kill signal • • Quiet operation • Will not slip • Right Size Finger Safe • Safe from
Define early start, early finish, late finish, and late start times.
A Canadian tourist travelling to Miami learned that the local temperatures in Fahrenheit for the last week were as follows: 93, 94, 93, 95, 96, 88, 90 (yesterday).a) Forecast the high temperature
Mark Cotteleer owns a company that manufactures canoes. Actual demand for Mark’s canoes during each season in 2015 through 2018 was as follows: Mark has forecasted that annual demand for his
In what ways are product strategies linked to product decisions?
Red Deer College promotes a wide variety of executive training courses for firms in the Red Deer area. Director Marilyn Helms believes that individually typed letters add a personal touch to
What factors affect region/community location decisions?
Each year, Hudson’s Bay Company sets up a gift-wrapping station to assist its customers with holiday shopping. Preliminary observations of one worker at the station produced the following sample
What are the objectives of supply chain management?
The items listed in the following table are stored in a warehouse. Using the following figure, indicate the best storage location for each item to minimize average distance traveled.
Besides warehouse layout decisions, what are some other applications where ranking items according to “bang/buck” might make sense?
When are decision trees most useful?
A local craftsman named Chuck Synovec builds two kinds of birdhouses, one for wrens and a second for bluebirds. Each wren birdhouse takes 4 hours of labour and 4 units of lumber. Each bluebird house
During the afternoon peak hours the First Bank of Halifax has an average of 40 customers arriving every hour. There is also an average of eight customers at First Bank at any time. The probability of
Flashy Flashers is a medium-sized firm employing 900 persons and 125 managerial and administrative personnel. The firm produces a line of automotive electrical components. It supplies about 95 auto
This Active Model appears in myomlab. It allows you to evaluate the relationship between the inventory record data and the planned order releases.QUESTIONS1. Suppose that the POQ for item B is
A partially completed inventory record for the motor subassembly is shown in Figure 15.34.a. Complete the last three rows of the record for an FOQ of 60 units.b. Revise the planned order release row
Complete the MPS record in Figure 15.26 for a single item.Figure 15.26:
What is the lead time (in weeks) to respond to a customer order For product A. based on the 80M shown in Figure 15.25, assuming no existing inventories or scheduled receipts?Figure 15.25:
What is the lead time (in weeks) to respond to a customer order For product A. based on the 80M shown in Figure 15.25, assuming no existing inventories or scheduled receipts?Figure 15.25:
This Active Model appears in myomlab. It allows you to evaluate the effects of modifying the size of a constant workforce.QUESTIONS1. If we use the same number of workers in each period, what happens
Deckers Outdoor Corporation's footwear products are among some of the most well-known brands in the world. From UGG sheepskin boots and Teva sport sandals to Simple shoes, Deckers flip-flops, and

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