OriginLab Corporation - Scientific Graphing and Data Analysis Software - 2D graphs, 3D graphs, Contour Plots, Statistical Charts, Data Exploration, Statistics, Curve Fitting, Signal Processing, and Peak Analysis

Nonparametric Tests (OriginPro Only)


Hypothesis tests are parametric tests since they assume the population follows some specific distribution (such as normal) with a set of parameters. Nonparametric tests, on the other hand, are employed when certain assumptions cannot be made about the population. Rank or ordinal data usually require nonparametric analysis.

Nonparametric statistical tests are an OriginPro feature.

Topics covered in this section: