This site is devoted to statistical tests and demonstrations of their use and was created with the support of the National Science Foundation. One section is a complete reference guide – the online statistics textbook, with detailed descriptions of all things statistical. The second, and most fun section, is simulations/demonstrations section where nearly twenty statistical tests are demonstrated with interactive Applets. Each Applet has clear instructions for use with details on the test demonstrated. A third section gives case studies where statistics have played a role, illustrating theory with specific analyses from court cases to who is buying iMacs.