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Weapons and Aggression
Created by Craig Anderson of Iowa State University, this case study addresses the question: "Does the mere presence of a weapon increase the accessibility of aggressive thoughts?" It concerns the following concepts: quantile and box plots, stem and leaf displays, one-sample t test, confidence interval, within-subjects ANOVA, and consequences of violation of normality assumption. This is a great example of a case study that illustrates many different concepts of statistics.
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