Acknowledgments The work on this manual was funded by the William Mendenhall Teaching Scholar Program. Part of the SAS Primer was taken from the Statistical Instructional Computing Laboratory Manual written by Tim Arnold and handouts from the SAS Short Course taught by Joy Smith and Sandy Donaghy, Department of Statistics, NCSU. Examples were taken from lecture notes prepared by David A. Dickey, PhD. SAS is a registered trade mark of the SAS Institute Inc., Cary, NC USA. cCopyright 1992 by D. Kim Chantala.