We'll introduce the chi-square test by comparing and contrasting it with a familiar statistical test: the t-test! For example, we might do a one-sample, two-tailed t-test if we have the following ...
What is the chi-squared test? The chi-squared test, often written as χ 2 test, is a statistical hypothesis test used in the analysis of categorical variables to determine whether observed data are ...
Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
A statistical test that allows one to determine whether observed quantities of a specific characteristic differed from the expected value purely by chance.
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