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 a one sample t test? The t test is a commonly used hypothesis test in statistics that allows us to compare the mean value of a group of sampled data with some hypothesized value, usually a ...

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 ...

Aggregate results from genome-wide association studies (GWAS) 1,2,3, such as genotype frequencies for cases and controls, were until recently often made available on public websites 4,5 because they ...