R. Dennis Cook and Sanford Weisberg are Professors of Statistics at the University of Minnesota. Dr. Weisberg is also Director of the Statistical Consulting Service at the university. Both have extensive publishing experience with Wiley. Bert M. Steece received his Ph.D.

in statistics, econometrics, and mathematical economics at the University of Southern California where he currently serves as Deputy Dean of Academic Programs in the Marshall School of Business. Dr. Steece has extensive experience in the corporate sector having been previously employed as an applied statistician by The RAND Corporation and the Jet Propulsion Laboratory. He is a member of Phi Kappa Phi.