R is the perfect language for creating a variety of chi-square tests, which are used to perform statistical analyses of counts of data. Here's how, with some sample code. A chi-square test (also ...

The first thing any scientist does before performing an experiment is to form a hypothesis about the experiment's outcome. This often takes the form of a null hypothesis, which is a statistical ...

This is a preview. Log in through your library . Abstract In a departure from previous comparisons of the relative efficiency of pair-matched with independent samples, this note considers matching as ...