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 ...

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 ...

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 ...