Applied statistics in business and economics

By David P. Doane. 2006

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Comparison of the t vs. Wilcoxon Signed-Rank Test for Likert Scale Data & Small Samples (2007, methodology): “Doane and Seward (2007) recommended the use of the Wilcoxon signed-rank test in small sample situations because it is free of the normality assumption, uses ordinal data, is robust to outliers and has fairly good power over a range of non-normal population shapes.”
A Few Prolific Liars (2015, background): “When events are independent, measured as a rate, occur with low frequency over a specified unit of time, and have no obvious upper limit, these events have the properties of a Poisson distribution (Doane & Seward, 2008).”