Darden University of Virginia (USA)
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The Roulette Wheel
Pfeifer, Phillip E.Case DARDEN-QA-0718-EDecision AnalysisThe case provides data gathered from 18 hours of play at a single roulette wheel in a Nevada casino. Data include the frequencies of each of the 38 sectors over 904 spins and frequencies of the 22,527 "straight-up" bets placed. Summary data is also available on how bettors react to streaks in even-money outcomes-allowing one to test for the gambler's fallacy. The case is used in an introductory course on data analysis. The data came from Croston ...Starting at €8.20
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Salmones Puyuhuapi (B)
Pfeifer, Phillip E.; Echeverria, RafaelCase DARDEN-QA-0750-EDecision AnalysisThis case series is appropriate for undergraduate, MBA, executive education, and MBAExec audiences but is specifically designed for decision analysis, a first-year MBA core course. In the A case, Osvaldo Correa, CEO of Salmones Puyuhuapi (SP), must decide how to respond to news that the ISA virus had infected a competitor’s salmon farming site. The alternatives include harvesting SP’s 900,000 salmon two months early, waiting for the fish to grow ...Starting at €5.74
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Salmones Puyuhuapi (C)
Pfeifer, Phillip E.; Echeverria, RafaelCase DARDEN-QA-0751-EDecision AnalysisThis case series is appropriate for undergraduate, MBA, executive education, and MBAExec audiences but is specifically designed for decision analysis, a first-year MBA core course. In the A case, Osvaldo Correa, CEO of Salmones Puyuhuapi (SP), must decide how to respond to news that the ISA virus had infected a competitor’s salmon farming site. The alternatives include harvesting SP’s 900,000 salmon two months early, waiting for the fish to grow ...Starting at €5.74
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A Bayesian Examines the Lady Tasting Tea
Pfeifer, Phillip E.Technical Note DARDEN-QA-0769-EDecision AnalysisThis technical note accompanies the case/class on “The Lady Tasting Tea” (LTT). It describes how a Bayesian would update his or her prior probability for the probability the LTT can correctly distinguish cups of tea based on whether the milk was added first or last. This long-form note describes both a discrete model (LTT has p of 0.5 or 0.8) and a more complicated continuous model (p is beta distributed). The abridged note (UVA-QA-0768) describe...Starting at €8.20
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The IQ Experiment
Pfeifer, Phillip E.; Ovchinnikov, Anton S.Case DARDEN-QA-0770-EDecision AnalysisThis case describes an IQ experiment in which 66 students, under the direction of their professor, used Excel to generate simulated IQs. The instructions were such that the generated IQs should have come from a normal distribution with a mean of 100 and standard deviation of 15. The sample average IQ, however, was 104.3. Students are asked to use their data-analysis skills to make sense of the results. The data set also contains gender (male or f...Starting at €8.20
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The Lady Tasting Tea
Pfeifer, Phillip E.Case DARDEN-QA-0771-EDecision AnalysisThis short case describes a famous experiment conducted by Sir Ronald A. Fisher and colleagues to test Dr. B. Muriel Bristol’s claim that she could tell—only by tasting—whether milk or tea was poured first into her cup. Using hypothesis testing, students must answer the question of how many correct picks the lady tasting tea (LTT) must make in order to “prove” her claim.Starting at €8.20
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Alumni Giving
Pfeifer, Phillip E.Case DARDEN-QA-0792-EDecision AnalysisMadison Kryswada, director of alumni relationships at State University, assembled a 123-school data set to explore, in her words, "the drivers of alumni giving rate." The alumni giving rate contributed 5% to the increasingly important U.S. News & World Report rankings of U.S. colleges and universities. Wanting to understand the relationship between this variable and school characteristics, Kryswada gave her assistant a list of four well-formed qu...Starting at €8.20
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Nils Baker
Ovchinnikov, Anton S.; Pfeifer, Phillip E.; Call, NathanCase DARDEN-QA-0793-EDecision AnalysisThis very short and seemingly straightforward case is an efficient vehicle for exploring the nuances of hypothesis testing via regression modeling and t-tests in the context of an MBA or advanced undergraduate analytics course.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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Night-Lights and Nearsightedness (B)
Pfeifer, Phillip E.; Zadnik, KarlaCase DARDEN-QA-0843-EDecision AnalysisAs part of her ongoing research program, Karla Zadnik, dean of the Ohio State University College of Optometry, had access to data on the eyesight of well over 1,000 children from the multicenter Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) study. In reaction to the Quinn study, she quickly administered a her own survey asking parents to report both their prior use of nighttime lighting and their own refractive ...Starting at €5.74