1. A small building contractor has recently experienced two successive years in which work opportu- nities exceeded the firm's capacity. The contractor must now make a decision on capacity for next year. Estimated profits under each of the two possible states of nature are as shown in the table below. Which alternative should be selected if the decision criterion is: a. Maximax? b. Maximin? c. Laplace? d. Minimax regret? Alternative Do nothing Expand NEXT YEAR'S DEMAND Low $50* 20 High $60 80

1. A small building contractor has recently experienced two successive years in which work opportu- nities exceeded the firm's capacity. The contractor must now make a decision on capacity for next year. Estimated profits under each of the two possible states of nature are as shown in the table below. Which alternative should be selected if the decision criterion is: a. Maximax? b. Maximin? c. Laplace? d. Minimax regret? Alternative Do nothing Expand NEXT YEAR'S DEMAND Low $50* 20 High $60 80

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter9: Decision Making Under Uncertainty

Section: Chapter Questions

Problem 30P

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Scenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. Ethical decisions that affect a buyers ethical perspective usually involve the organizational environment, cultural environment, personal environment, and industry environment. Analyze this scenario using these four variables.
Scenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. What should Sharon do in this situation?
Scenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. What does the Institute of Supply Management code of ethics say about financial conflicts of interest?
: A small building contractor has recently experienced two successive years in which work opportunitiesexceeded the firm’s capacity. The contractor must now make a decision on the capacity for the next year.Estimated profits under each of the two possible states of nature are shown in the table below. The units are in P thousands. Which alternative should be selected if the decision criterion is: a. Maximax? b. Maximin? c. Laplace? d. Minimax regret?
Suppose that the management of Theme Park, Inc., has decided that there is a.35 probability that the motel’s application will be approved.a. If management uses maximum expected monetary value as the decision criterion, which alternative should it choose?b. Represent this problem in the form of a decision tree.c. If management has been offered the option of a temporary lease while the town planning boardconsiders the motel’s application, would you advise management to sign the lease? The leasewill cost $24,000.
c. From the following decision tree, develop a payoff table and calculate: * Maximax, Minimax regret, Maximin, and EMV. ORs. 50,000 Good conditions (0.60) Poor conditions (0.40) -O Rs. 30,000 Apartment Building Good conditions (0.60) O Rs. 100,000 Office building Poor conditions (0.40) Purchase ORs -40,000 Warchouse Good conditions (0.60) Rs.30, 000 Poor conditions (0.40) O Rs. 10,000
Given is a decision payoff table and a Sub Decision Payoff Table. Use Minimax Regret as an evaluation criterion to evaluate alternatives. Alternatives Low Future Demand Moderate High Small Facility 52 42 43 Medium Facility 50 49 49 Large Facility -15 38 Alternatives Small Facility Medium Facility Large Facility Worst Regrets ? ? ? a) The worst regrets for alternative Small Facility is Blank 1 b) The worst regrets for alternative Medium Facility is Blank 2 c) The worst regrets for alternative Large Facility is Blank 3 d) The best course of action or decision by using Minimax Regret is to select Blank 4 facility 51
Given is a decision payoff table and a Sub Decision Payoff Table. Use Minimax Regret as an evaluation criterion to evaluate alternatives. Alternatives Low Future Demand Moderate Small Facility 49 48 Medium Facility 46 47 Large Facility -12 112 47 Alternatives Small Facility Medium Facility Large Facility Worst Regrets ? ? ? a) The worst regrets for alternative Small Facility is Blank 1 b) The worst regrets for alternative Medium Facility is Blank 2 c) The worst regrets for alternative Large Facility is Blank 3 d) The best course of action or decision by using Minimax Regret is to select Blank 4 facility 47 ཆེ་ཆེ་བེ་རྡོ High
1. A builder has located a piece of property that she would like to buy and eventually build on. The land is currently zoned for four homes per acre, but she is planning to request new zoning. What she builds depends on approval of zoning requests and your analysis of this problem to advise her. With her input and your help, the decision process has been reduced to the following costs, alternatives, and probabilities: Cost of land: $2 million. Probability of rezoning: 0.60. If the land is rezoned, there will be additional costs for new roads, lighting, and so on of $1 million. If the land is rezoned, the contractor must decide whether to build a shopping center or 1,500 apartments that the tentative plan shows would be possible. If she builds a shopping center, there is a 70 percent chance that she can sell the shopping center to a large department store chain for $4 million over her construction cost, which excludes the land; and there is a 30 percent chance that she can sell it to an…
Given is a decision payoff table and a Sub Decision Payoff Table. Use Minimax Regret as an evaluation criterion to evaluate alternatives. Future Demand Alternatives Low Moderate High Small Facility 31 18 15 Medium Facility 20 35 21 Large Facility -10 31 35 Alternatives Worst Regrets Small Facility ? Medium Facility ? Large Facility ? a) The worst regrets for alternative Small Facility is ( ) b) The worst regrets for alternative Medium Facility is ( ) c) The worst regrets for alternative Large Facility is ( ) d) The best course of action or decision by using Minimax Regret is to select ( ) facility
DECISION THEORY. A man has to decide wheter to resign or not from his present position and apply for a job offering him 2x his present salary, that is if he passes the qualifying test. At present, he receives $3000 monthly compensation. The offer from another company has a condition that he will not be allowed to take the qualifying test, he will immediately be taken in and have a monthly pay of $6000. If he fails, he will remain jobless, he feels that his chance of passing the test is 35%. Suppose he decides to base his decision on expected value, should he resign from his post or not?
1. Decision Rules. A company is choosing a motorized mechanism for a new toy, a dancing ballerina (TippiToes) that is currently under development. Demand is uncertain. but the company is confident that demand will be: Light (25,000 units), Moderate (100,000 units) or Heavy (150,000) units. The payoff table for each mechanism (in $) is given below. Action: Choice of Mechanism Event Gears and Levers Spring Weights and Pulleys Pneumatic Light 25,000 -10,000 -125,000 -300,000 Moderate 400,000 440,000 400,000 300,000 Heavy 650,000 740,000 750,000 700,000 Questions: (1) Apply Maximax, Maximin, Minimax Regret, and EMV rules (assuming that the probability of Light demand is 0.1, Moderate demand is 0.7, and Heavy demand is 0.2) to decide what mechanism should the company choose? (2) What is the expected value of perfect information? (3) Draw a decision tree to solve this problem.