Document Type



Mr. Polcer's research is supported by the Kentucky EPSCoR Research Startup Fund RSF-031-06. This research was originally presented at the spring 2008 conference.


We considered the problem of statistical quality control based on the ratio of two population means. We restrict the discussion for two exponential rates, which are commonly used for modeling failure times of components, machines, or systems. Closed form expressions via the moment generation function (MGF) technique will be presented, and numerical examples will be shown using engineering data sets.

Faculty Advisor

Dr. Jonathan Quiton (Project Director),Dr. Di Wu, Dr. Melanie Autin