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 analyze statistical significance.

TEE is a diagnostic technique that allows doctors to obtain detailed images of the heart. It involves inserting a tube (probe) down the throat to reach the esophagus (windpipe). Generally, TEE is a ...

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’s a Transesophageal Echocardiogram? A transesophageal echocardiogram (TEE) is a type of ultrasound test. Your doctor puts a tube down your esophagus with an ultrasound device that takes a series ...

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 ...

An echocardiogram is a test that shows detailed pictures of your heart. There are many types, and they're performed in different ways. (Photo credit: E+/Getty Images) An echocardiogram is a test that ...

Determining whether a data point is an "outlier" - a result that does not fit, is too high or too low, is extreme or discordant - is difficult when using small data sets, such as the data from three, ...