Read on to learn more about what a t-test is, the different formulas used, and when to apply each type to compare means and ...

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 ...

This is a preview. Log in through your library . Abstract Brown and Zhao (2012) (Sankhyā, Series A, Volume 64, pp 611-625) developed a new test for the Poisson distribution and compared it with the ...

What is the Kruskal–Wallis test? The Kruskal–Wallis test is a statistical test used to compare two or more groups for a continuous or discrete variable. It is a non-parametric test, meaning that it ...