often using real-world data instead. These tests are simple to implement, allowing laypeople to conduct them if needed. Many ...

A t-test is an inferential statistical test used to determine if there is a significant difference between the means of two groups and how they are related. T-tests are used when the data sets ...

As such, you’ll need to do a check before making use of this test in your statistical analysis. The Six Sigma Black Belt ...

Two-sample t-tests are statistical tests used to compare the means of two populations. Also known as Student’s t-tests, their results are used to determine if there is a significant difference between ...

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 ...

My print column this week examines the concept of statistical significance -- a concept that the Supreme Court recently weighed in on, but that remains elusive even to some scientists who use it ...

As a standard, statistical significance can help an investor choose one asset pricing model over others. Several types of significance tests are used depending on the research being conducted.

A test administrator is now cooperating with ... computer to run and does not take much longer than standard statistical models used in this area," McNeish said. "Logistically, all the pieces ...

A test administrator is now cooperating with ... computer to run and does not take much longer than standard statistical models used in this area," McNeish said. "Logistically, all the pieces ...