T-Test: What It Is With Multiple Formulas and When to Use Them

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 ...
isixsigma on MSN

Making Sense of the Two-Sample T-Test: Supercharge Your Hypotheses Tests

The two-sample t-test is one of the most commonly used hypothesis tests in Six Sigma work. It is applied to compare the average difference between two groups. You use it to determine if the difference ...
Hackaday

Statistics And Hacking: An Introduction To Hypothesis Testing

In the early 20 th century, Guinness breweries in Dublin had a policy of hiring the best graduates from Oxford and Cambridge to improve their industrial processes. At the time, it was considered a ...
Investopedia

Key Assumptions of T-Tests Explained for Accurate Statistical Analysis

J.B. Maverick is an active trader, commodity futures broker, and stock market analyst 17+ years of experience, in addition to 10+ years of experience as a finance writer and book editor. T-tests are ...
University of Sheffield

Introduction to Hypothesis tests

Hypothesis testing is a formal procedure for investigating our ideas about the world using statistics. It is most often used by researchers to test predictions, called hypotheses. The first step in ...