Gerald J. Hahn, PhD, worked at the GE Global Research Center for 46 years, where he managed its statistics group for 28 years and was elected a Coolidge Fellow, the organization's highest honor, in 1984. A Fellow of the American Statistical Association (ASA) and American Society for Quality (ASQ), Dr. Hahn is the author of numerous papers and the coauthor of Statistical Models in Engineering; Statistical Intervals: A Guide for Practitioners; and The Role of Statistics in Business and Industry, all published by Wiley. He has received many professional awards and served as adjunct professor at various universities.
Necip Doganaksoy, PhD, is a Statistician and Principal Technologist at the GE Global Research Center, where he has worked for over 20 years; he is also an Adjunct Professor at Union Graduate College. A Six Sigma Master Black Belt and a Fellow of ASA and ASQ, Dr. Doganaksoy has written more than 60 articles on quality, reliability, and productivity improvemen
