A t-statistic is performed during a t-test. The resulting statistic is used to determine whether to accept or reject a null hypothesis. The core use of this statistic is for direct comparison ...

A t-test measures the difference between the means of two samples. A t-test is an inferential statistical test used to determine if there is a significant difference between the means of two ...

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 ...

For example, when your data is not normally distributed, which is needed in a t-test, then you would use a Wilcoxon test. The Wilcoxon test is a statistical tool for analyzing paired data when the ...

invented the t-test. The concept of statistical significance predated Gosset, but prior statisticians worked in the regime of large sample sizes. To appreciate why this distinction matters ...

and to view the resulting distribution of test statistics arising from simulation results. Developed by Michael Whitlock at The University of British Columbia. This web calculator conducts a ...