Choosing between Parametric and Non-parametric Tests

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Vol: 9, Issue: 1

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Johnson, Russ
parametric; non-parametric; testing; statistics; mathematics; parametric testing; non-parametric testing; Mathematics; Probability
article description
A common question in comparing two sets of measurements is whether to use a parametric testing procedure or a non-parametric procedure. The question is even more important in dealing with smaller samples. Here, using simulation, several parametric and nonparametric tests, such as, t-test, Normal test, Wilcoxon Rank Sum test, van-der Waerden Score test, and Exponential Score test are compared.