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The Pelayo Family Plays Roulette: The Prequel
Pfeifer, Phillip E.; Bodily, Samuel E.; Baucells, ManelCase DARDEN-QA-0847-EDecision AnalysisThe case presents data from 70,340 spins of four roulette wheels: three of which are real ("imperfect") and one of which is simulated ("perfect"). The challenge posed is to identify which of the four is the simulated wheel. After weeks spent recording spin results at their local casino, the members of the Pelayo family think they have identified three imperfect wheels. Before they start betting, they want to be certain that the three wheels they ...Starting at €8.20
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Saving Customers at Vigil Home Security
Pfeifer, Phillip E.Case DARDEN-QA-0804-EDecision AnalysisMike Thomas, director of customer relationships at the second-leading provider of residential security systems in the United States, set out to examine data from 61,235 customer "saves" in order to determine if the offer used to persuade a customer not to discontinue service affected the subsequent longevity of the saved relationship. If some offers led to longer subsequent relationships, Thomas's next step would be to reward customer service rep...Starting at €8.20
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Wunderdog Sports Picks
Pfeifer, Phillip E.Case DARDEN-QA-0719-EDecision AnalysisThis case is little more than an e-mail that a college statistics professor received from the owner of a sports-picking service. The e-mail reports that the owner's picking system correctly picked 87 out of 149 2005 NFL games against the point spread. Students must decide what to make of this information. The case is used in an introductory course in data analysis and statistics.Starting at €8.20
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The Sequel to Chance Encounters
Pfeifer, Phillip E.Case DARDEN-QA-0831-EDecision AnalysisMovie-industry analyst David Fitzhugh must estimate the value of the sequel rights associated with Chance Encounters, a soon-to-be-produced movie. The producers intend to use the cash from the sale of the sequel rights to help fund production of the original movie. With the purchase of the sequel rights, the client fully intends to produce a sequel--should the original movie prove successful.Starting at €8.20
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Chance Encounters II
Pfeifer, Phillip E.Case DARDEN-QA-0783-EDecision AnalysisMovie-industry analyst David Fitzhugh must estimate the value of the sequel rights associated with Chance Encounters (CE), a soon-to-be-produced movie. The producers of CE intend to use the cash from the sale of the sequel rights to help fund production of the original movie. With the purchase of the sequel rights to CE, the client intends to produce a sequel to CE--should the original movie prove successful.Starting at €8.20
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JCG Global Air Services
Pfeifer, Phillip E.Case DARDEN-QA-0724-EDecision AnalysisA pilot/manager in a large corporate aviation department must formulate a fueling plan for an upcoming four-leg trip. Considerations for the fueling plan include different fuel prices at each airport (fuel is much cheaper if bought at home) and ramp fees levied at destination airports if fuel purchases fail to meet specified minimums. Other considerations include aircraft weight limits for takeoffs and landings (with fuel being a large component ...Starting at €8.20
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Hightower Department Stores: Imported Stuffed Animals (Spanish version)
Pfeifer, Phillip E.Case DARDEN-QA-0954Decision AnalysisThis is a Spanish translation of the April 15, 2013, version of UVA-QA-0268. Julia Brown, toy buyer for the Hightower Department Stores, has to decide which of three imported stuffed animals will be offered for sale by the 16 Hightower stores during the approaching Christmas shopping season. The case is appropriately used as an introduction to the concepts of least squares and regression analysis. A linear relationship between realized and test-m...Starting at €8.20
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Salmones Puyuhuapi Part I
Bodily, Samuel E.; Echeverria, Rafael; Pfeifer, Phillip E.Case DARDEN-QA-0776-EDecision AnalysisThis case series is appropriate for undergraduate, MBA, executive education, and MBA Exec audiences but is specifically designed for decision analysis, a first-year MBA core course. In the Part I case, Osvaldo Correa, CEO of Salmones Puyuhuapi (SP), must decide how to respond to news that the ISA virus has infected a competitor’s salmon farming site. The alternatives include harvesting SP’s 900,000 salmon two months early, waiting for the fish to...Starting at €8.20
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Screening for Chronic Kidney Disease
Pfeifer, Phillip E.; Bang, HeejungCase DARDEN-QA-0704-EDecision AnalysisThe case asks students to develop a method for identifying individuals at risk of having chronic kidney disease. A 6,000-subject training set containing 34 potential predictor variables is provided along with a 2,819 subject validation set the instructor uses to evaluate student predictions. The case is based on an actual study which resulted in a simple nine-question survey that health professionals use to help patients decide whether to be test...Starting at €8.20
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Night-Lights and Nearsightedness (A)
Pfeifer, Phillip E.; Zadnik, KarlaCase DARDEN-QA-0842-EDecision AnalysisResearchers at the University of Pennsylvania were interested in whether exposure to light early in life might affect eye growth and lead to an increased risk of myopia (nearsightedness). Eyes grew rapidly after birth, but myopia usually did not develop until later in life and arose from excessive postnatal eye growth. They knew that the duration of daily light had been shown to increase eye growth in chicks and wondered whether the same might b...Starting at €8.20