Operations Management (Comp. Instructor's Edition)
13th Edition
ISBN: 9781259948237
Author: Stevenson
Publisher: MCG
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Chapter 5.S, Problem 10P
A manager must decide how many machines of a certain type to buy. The machines will be used to manufacture a new gear for which there is increased demand. The manager has narrowed the decision to two alternatives: buy one machine or buy two. If only one machine is purchased and demand is more than it can handle, a second machine can be purchased at a later time. However, the cost per machine would be lower if the two machines were purchased at the same time.
The estimated probability of low demand is .30, and the estimated probability of high demand is .70.
The
The net present value for one machine and low demand is $90,000. If demand is high, there are three options. One option is to do nothing, which would have a net present value of $90,000. A second option is to subcontract, that would have a net present value of $110,000. The third option is to purchase a second machine. This option would have a net present value of $100,000.
How many machines should the manager purchase initially? Use a decision tree to analyze this problem.
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A manager must decide how many machines of a certain type to buy. The machines will be used to manufacture a new gear for which there is increased demand. The manager has narrowed the decision to two alternatives: buy one machine or buy two. If only one machine is purchased and demand is more than it can handle, a second machine can be purchased at a later time. However, the cost per machine would be lower if the two machines were purchased at the same time. The estimated probability of low demand is .30, and the estimated probability of high demand is .70. The net present value associated with the purchase of two machines initially is $77,900 if demand is low and $137,100 if demand is high. The net present value for one machine and low demand is $98,000. If demand is high, there are three options. One option is to do nothing, which would have a net present value of $119,680. A second option is to subcontract; that would have a net present value of $115,650. The third option is to…
Jane Woodhurst is considering whether to buy one or two machines for a certain stage of the assembly line at a new electric car startup company.If one machine is purchased initially, a second one can be purchased later after observing demand.However buying the machines together is cheaper.Also the lead time to get a machine is long, so there may be lost sales if the decision to buy the 2nd machine is taken later after seeing high demand.
Jane estimates that demand may be low with a probability of 0.25, or medium with a probability of 0.3, or high with a probability of 0.45
If two machines are purchased the payoffs are 90,000$ for low demand, 200,000$ for medium demand, and 500,000$ for high demand.
If one machine is purchased, then no additional decision is required if the demand is low or medium (as one machine can handle these cases). However if the demand is high, Jane has 3 options: outsource some production, buy a 2nd machine, do nothing (live with 1 machine)
If one machine is…
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Miles is considering buying a new pickup truck for his lawn service firm. The economy in town seems to
be growing, and he is wondering whether he should opt for a subcompact, compact, or full-size pickup
truck. The smaller truck would have better fuel economy, but would sacrifice capacity and some
durability. A friend at the Bureau of Economic Research told him that there is a 30% chance of lower
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Chapter 5 Solutions
Operations Management (Comp. Instructor's Edition)
Ch. 5.8 - Explain the meaning of the phrase Hours versus...Ch. 5.8 - Prob. 1.2RQCh. 5.8 - Prob. 1.3RQCh. 5.8 - Prob. 1.4RQCh. 5.8 - Prob. 1.5RQCh. 5.S - Prob. 1DRQCh. 5.S - Prob. 2DRQCh. 5.S - Explain the term bounded rationality.Ch. 5.S - Prob. 4DRQCh. 5.S - Prob. 5DRQ
Ch. 5.S - What information is contained in a payoff table?Ch. 5.S - Prob. 7DRQCh. 5.S - Prob. 8DRQCh. 5.S - Under what circumstances is expected monetary...Ch. 5.S - Explain or define each of these terms: a. Laplace...Ch. 5.S - Prob. 11DRQCh. 5.S - Prob. 12DRQCh. 5.S - Prob. 13DRQCh. 5.S - Prob. 1PCh. 5.S - Refer to problem1. Suppose after a certain amount...Ch. 5.S - Refer to Problems 1 and 2 Construct a graph that...Ch. 5.S - Prob. 4PCh. 5.S - Prob. 5PCh. 5.S - The lease of Theme Park, Inc., is about to expire....Ch. 5.S - Prob. 7PCh. 5.S - Prob. 8PCh. 5.S - Prob. 9PCh. 5.S - A manager must decide how many machines of a...Ch. 5.S - Prob. 11PCh. 5.S - Prob. 12PCh. 5.S - Prob. 13PCh. 5.S - Prob. 14PCh. 5.S - Give this payoff table: a. Determine the range of...Ch. 5.S - Prob. 16PCh. 5.S - Repeat all parts of problem 16, assuming the value...Ch. 5.S - Prob. 18PCh. 5 - Prob. 1DRQCh. 5 - Prob. 2DRQCh. 5 - How do long-term and short-term capacity...Ch. 5 - Give an example of a good and a service that...Ch. 5 - Give some example of building flexibility into...Ch. 5 - Why is it important to adopt a big-picture...Ch. 5 - What is meant by capacity in chunks, and why is...Ch. 5 - Prob. 8DRQCh. 5 - How can a systems approach to capacity planning be...Ch. 5 - Prob. 10DRQCh. 5 - Why is it important to match process capabilities...Ch. 5 - Briefly discuss how uncertainty affects capacity...Ch. 5 - Prob. 13DRQCh. 5 - Prob. 14DRQCh. 5 - Prob. 15DRQCh. 5 - Prob. 16DRQCh. 5 - What is the benefit to a business organization of...Ch. 5 - Prob. 1TSCh. 5 - Prob. 2TSCh. 5 - Prob. 3TSCh. 5 - Prob. 1CTECh. 5 - Prob. 2CTECh. 5 - Identify four potential unethical actions or...Ch. 5 - Any increase in efficiency also increases...Ch. 5 - Prob. 1PCh. 5 - In a job shop, effective capacity is only 50...Ch. 5 - A producer of pottery is considering the addition...Ch. 5 - A small firm intends to increase the capacity of a...Ch. 5 - A producer of felt-tip pens has received a...Ch. 5 - A real estate agent is considering changing her...Ch. 5 - A firm plans to begin production of a new small...Ch. 5 - A manager is trying to decide whether to purchase...Ch. 5 - A company manufactures a product using two machine...Ch. 5 - A company must decide which type of machine to...Ch. 5 - Prob. 11PCh. 5 - A manager must decide how many machines of a...Ch. 5 - Prob. 13PCh. 5 - The following diagram shows a four-step process...Ch. 5 - Prob. 15PCh. 5 - Prob. 16PCh. 5 - Prob. 17PCh. 5 - Prob. 18PCh. 5 - A new machine will cost 18,000, butt result it...Ch. 5 - Remodelling an office will cost 25,000 and will...Ch. 5 - Prob. 1CQCh. 5 - Prob. 2CQCh. 5 - Prob. 3CQ
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