OMNITAB 80 is a high-level spread sheet for statistical analysis. OMNITAB, the precursor of Minitab(TM), was developed in the Statistical Engineering Division and is maintained by the Statistical Engineering Division. OMNITAB performs many different statistical analyses, arithmetic and trigonometric calculations, and matrix and array operations. The software responds to simple instructions and uses reliable computational algorithms. NOTE: OMNITAB was commercialized by MINITAB in the 1980’s. At that time, active development of OMNITAB ceased (the special publication was published 1986, there has been no significant active development since then). On the other hand, MINITAB has continued active development since that time. For that reason, it is not accurate to think of OMNITAB as a free version of MINITAB. We provide OMNITAB to support legacy applications. However, there is no active consulting support beyond providing the software. Also, there are no formal ties between NIST and MINITAB. Any inquiries regarding MINITAB should be addressed directly to MINITAB.