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business
operations management 6th
Operations Management Sustainability And Supply Chain Management 13th Global Edition Jay Heizer, Barry Render, Chuck Munson - Solutions
Distinguish between bottleneck time and throughput time. lop25
What is the theory of constraints? lop25
What are the assumptions of break-even analysis? lop25
What keeps plotted revenue data from falling on a straight line in a break-even analysis? lop25
Under what conditions would a firm want its capacity to lag demand? to lead demand? lop25
Explain how net present value is an appropriate tool for comparing investments. lop25
Describe the five-step process that serves as the basis of the theory of constraints. lop25
What are the techniques available to operations managers to deal with a bottleneck operation? Which of these does not decrease throughput time? lop25
Amy Xia’s plant was designed to produce 7,000 hammers per day but is limited to making 6,000 hammers per day because of the time needed to change equipment between styles of hammers. What is the utilization? lop25
For the past month, the plant in Problem S7.1, which has an effective capacity of 6,500, has made only 4,500 hammers per day because of material delay, employee absences, and other problems. What is its efficiency? lop25
If a plant has an effective capacity of 6,500 and an efficiency of 88%, what is the actual (planned) output? lop25
A plant has an effective capacity of 900 units per day and produces 800 units per day with its product mix; what is its efficiency? lop25
Material delays have routinely limited production of household sinks to 400 units per day. If the plant efficiency is 80%, what is the effective capacity? lop25
The effective capacity and efficiency for the next quarter at MMU Mfg. in Waco, Texas, for each of three departments are shown:DEPARTMENT EFFECTIVE CAPACITY RECENT EFFICIENCY Design 93,600 .95 Fabrication 156,000 1.03 Finishing 62,400 1.05 Compute the expected production for next quarter for each
Under ideal conditions, a service bay at a Fast Lube can serve 6 cars per hour. The effective capacity and efficiency of a Fast Lube service bay are known to be 5.5 and 0.880, respectively.What is the minimum number of service bays Fast Lube needs to achieve an anticipated servicing of 200 cars per
A work cell at Chris Ellis Commercial Laundry has a workstation with two machines, and each unit produced at the station needs to be processed by both of the machines. (The same unit cannot be worked on by both machines simultaneously.)Each machine has a production capacity of 4 units per hour.What
The Pullman Mfg., Inc., three-station work cell illustrated in Figure S7.8 has two machines at station 1 in parallel.(The product needs to go through only one of the two machines before proceeding to station 2.) The manager, Ms. Hartley, has asked you to evaluate the system if she adds a parallel
A production process at Kenneth Day Manufacturing is shown in Figure S7.9. The drilling operation occurs separately from, and simultaneously with, sawing and sanding, which are independent and sequential operations. A product needs to go through only one of the three assembly operations (the
Smithson Cutting is opening a new line of scissors for supermarket distribution. It estimates its fixed cost to be $500.00 and its variable cost to be $0.50 per unit. Selling price is expected to average $0.75 per unit.a) What is Smithson’s break-even point in units?b) What is the break-even
Using the data in Problem S7.17:a) What is the break-even point in dollars for proposal A if you add $10,000 installation to the fixed cost?b) What is the break-even point in dollars for proposal B if you lop25
Given the data in Problem S7.17, at what volume(units) of output would the two alternatives yield the same profit? lop25
Given the following data, calculatea) BEPx;b) BEP$;andc) the profit at 100,000 units:P = +8>unit V = +4>unit F = +50,000 lop25
You are considering opening a copy service in the student union. You estimate your fixed cost at $15,000 and the variable cost of each copy sold at $.01. You expect the selling price to average $.05.a) What is the break-even point in dollars?b) What is the break-even point in units? lop25
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 far:ITEM SELLING PRICE VARIABLE COST % OF REVENUE Soft drink $2.00 $.65 25 Wine 2.75 .95 25 Coffee 2.00
You are given the data in Problem S7.28:a) What is the break-even point in dollars for proposal X?b) What is the break-even point in dollars for proposal Y? lop25
Given the data in Problem S7.28, at what volume (units)of output would the two alternatives yield the same profit (loss)? lop25
Use the same data in Problem S7.28:a) If the expected volume is 28,500 units, which alternative should be chosen?b) If the expected volume is 15,000 units, which alternative should be chosen? lop25
James Lawson’s Bed and Breakfast, in a small historic Mississippi town, must decide how to subdivide (remodel) the large old home that will become its inn. There are three alternatives:Option A would modernize all baths and combine rooms, leaving the inn with four suites, each suitable for two to
What is the net present value of an investment that costs $75,000 and has a salvage value of $45,000? The annual profit from the investment is $15,000 each year for 5 years. The cost of capital at this risk level is 12%. lop25
The initial cost of an investment is $65,000 and the cost of capital is 10%. The return is $16,000 per year for 8 years.What is the net present value? lop25
What is the present value of $5,600 when the interest rate is 8% and the return of $5,600 will not be received for 15 years? lop25
Tim Smunt has been asked to evaluate two machines.After some investigation, he determines that they have the costs shown in the following table. He is told to assume that:1. The life of each machine is 3 years.2. The company thinks it knows how to make 12% on investments no more risky than this
Your boss has told you to evaluate two ovens for Tink-the-Tinkers, a gourmet sandwich shop. After some questioning of vendors and receipt of specifications, you are assured that the ovens have the attributes and costs shown in the following table. The following two assumptions are appropriate:1.
Bold’s Gym, a health club chain, is considering expanding into a new location: the initial investment would be $1 million in equipment, renovation, and a 6-year lease, and its annual upkeep and expenses would be $75,000 (paid at the beginning of the year). Its planning horizon is 6 years out, and
Kurt Hozak, VP of Operations at McClain Manufacturing, has to make a decision between two investment alternatives. Investment A has an initial cost of $61,000, and investment B has an initial cost of $74,000. The useful life of investment A is 6 years; the useful life of investment B is 7
Evaluate the following capital investments according to net present value. Each alternative requires an initial investment of $20,000. Assume a 10% cost of capital. Which is the preferred investment?YEAR CASH FLOW FROM INVESTMENT 1 CASH FLOW FROM INVESTMENT 2 CASH FLOW FROM INVESTMENT 3 1 $ 1,000 $
Justin Bateh is considering a new machine for his shop.The machine is expected to generate receipts as follows: $50,000 in year 1, $30,000 in year 2, nothing in the next year, and $20,000 in year 4. At an interest rate of 6%, what is the present value of these receipts? lop25
Cheryl Druehl needs to purchase a new milling machine. She is considering two different competing machines.Milling Machine A will cost $300,000 and will return $80,000 per year for 6 years, with no salvage value. Milling machine B will cost $220,000 and will return $60,000 for 5 years, with a
Portland Savings and Loan is considering new computer software, which, because of installation and training cost, will have an unusual pattern of net receipts. The expected receipts are: $20,000 in year 1, nothing in the next year, $30,000 in year 3, and $50,000 in year 4. At an interest rate of 6%
Given the capacity planning discussion in the text (see Figure S7.6), what approach is being taken by Arnold Palmer Hospital toward matching capacity to demand? lop25
What kind of major changes could take place in Arnold Palmer Hospital’s demand forecast that would leave the hospital with an underutilized facility (namely, what are the risks connected with this capacity decision)? lop25
Use regression analysis to forecast the point at which Swanson needs to “build out” the top two floors of the new building, namely, when demand will exceed 16,000 births. lop25 TABLE 57.4 Births at Arnold Palmer Hospital YEAR BIRTHS 2000 8,655 2001 9,536 2002 9,825 2003 10,253 2004 10,555 2005
Capacity decisions should be made on the basis of:a) building sustained competitive advantage.b) good financial returns.c) a coordinated plan.d) integration into the company’s strategy.e) all of the above. lop25
Effective capacity is:a) the capacity a firm expects to achieve, given the current operating constraints.b) the percentage of design capacity actually achieved.c) the percentage of capacity actually achieved.d) actual output.e) efficiency. lop25
System capacity is based on:a) the bottleneck.b) throughput time.c) time of the fastest station.d) throughput time plus waiting time.e) none of the above. lop25
The break-even point is:a) adding processes to meet the point of changing product demands.b) improving processes to increase throughput.c) the point in dollars or units at which cost equals revenue.d) adding or removing capacity to meet demand.e) the total cost of a process alternative. lop25
Expected monetary value is most appropriate:a) when the payoffs are equal.b) when the probability of each decision alternative is known.c) when probabilities are the same.d) when both revenue and cost are known.e) when probabilities of each state of nature are known. lop25
Net present value:a) is greater if cash receipts occur later rather than earlier.b) is greater if cash receipts occur earlier rather than later.c) is revenue minus fixed cost.d) is preferred over break-even analysis.e) is greater if $100 monthly payments are received in a lump sum ($1,200) at the
Define the project and prepare the work breakdown structure. lop5
Develop the relationships among the activities. Decide which activities must precede and which must follow others. lop5
Draw the network connecting all the activities. lop5
Assign time and/or cost estimates to each activity. lop5
Compute the longest time path through the network. This is called the critical path. lop5
Use the network to help plan, schedule, monitor, and control the project. lop5
When will the entire project be completed? lop5
What are the critical activities or tasks in the project—that is, which activities will delay the entire project if they are late? lop5
Which are the noncritical activities—the ones that can run late without delaying the whole project’s completion? lop5
What is the probability that the project will be completed by a specific date? lop5
At any particular date, is the project on schedule, behind schedule, or ahead of schedule? lop5
On any given date, is the money spent equal to, less than, or greater than the budgeted amount? lop5
Are there enough resources available to finish the project on time? lop5
If the project is to be finished in a shorter amount of time, what is the best way to accomplish this goal at the least cost? lop5
Give an example of a situation in which project management is needed. lop5
Explain the purpose of project organization. lop5
What are the three phases involved in the management of a large project? lop5
What are some of the questions that can be answered with PERT and CPM? lop5
What is a project and why is it important is to understand the project environment? lop5
What is the use of Gantt charts in project management? lop5
What is the difference between an activity-on-arrow (AOA)network and an activity-on-node (AON) network? Which is primarily used in this chapter? lop5
What are the ethical dilemmas that project managers are faced with when dealing with projects? lop5
While numerous trade-offs may be required during the life cycle of a project, the trade-offs between cost, time, and performance are considered essential. Discuss. lop5
Describe how expected activity times and variances can be computed in a PERT network. lop5
Define earliest start, earliest finish, latest finish, and latest start times. lop5
Students are sometimes confused by the concept of critical path, and want to believe that it is the shortest path through a network. Convincingly explain why this is not so. lop5
What are dummy activities? Why are they used in activity-onarrow (AOA) project networks? lop5
What are the three time estimates used with PERT? lop5
Would a project manager ever consider crashing a noncritical activity in a project network? Explain convincingly. lop5
How is the variance of the total project computed in PERT? lop5
Describe the meaning of slack, and discuss how it can be determined. lop5
How can we determine the probability that a project will be completed by a certain date? What assumptions are made in this computation? lop5
Compare and contrast the Project Evaluation and Review Technique (PERT) with the Critical Path Method (CPM). lop5
What is the difference between the waterfall approach and agile project management? lop5
Develop the network for planning and construction of the new hospital at Arnold Palmer. lop5
What is the critical path, and how long is the project expected to take? lop5
Why is the construction of this 11-story building any more complex than construction of an equivalent office building? lop5
What percentage of the whole project duration was spent in planning that occurred prior to the proposal and reviews? Prior to the actual building construction? Why? lop5
Identify the critical path and its activities for Rockfest. How long does the project take? lop5
Which activities have a slack time of 8 weeks or more? lop5
Identify five major challenges a project manager faces in events such as this one. lop5
Why is a work breakdown structure useful in a project such as this? Take the 26 activities and break them into what you think should be level-2, level-3, and level-4 tasks. lop5
Define product life cycle? lop1
Describe a product development system? lop1
Build a house of quality? lop1
Explain how time-based competition is implemented by OM? lop1
Describe how goods and services are defined by OM? lop1
Describe the documents needed for production? lop1
Apply decision trees to product issues ? lop1
Why is it necessary to document a product explicitly? lop1
What techniques do we use to define a product? lop1
In what ways is product strategy linked to product decisions? lop1
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