Minitab Home page of Minitab statistical software. Includes the standard product information, technical support, software macros, etc. See their extensive list of companion textbooks for use with their software. This is a series of packages for multi-level modeling written by Don Hedeker and Robert Gibbons. Packages are available for DOS and Windows.
Software is free.
This is a nice little package put together by Robert C. Knodt to fill a perceived void in the area of affordable statistics software. A small no-frills package that offers lots of standard tests, and has a very reasonable license fee. You can get a free month trial of the software by contacting the author . Developed by Michael Neale. Includes link to freeware probability calculator for Windows, and a Freeware version of NCSS suitable for teaching or relatively simple data analysis.