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 frequency tables list the variable values (hair color) in the order in which they appear in the data set. The "Test Percent" column lists the hypothesized percentages for the chi-square test.

Michelle is a content and inbound marketing specialist based in Merseyside. As a marketer you will understand the importance of split testing but are you using the right statistics to judge what is ...