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.
Dr. Jonathan Quiton (Project Director),Dr. Di Wu, Dr. Melanie Autin
Polcer,III, James Albert, "Confidence Intervals for the Ratio of Two Exponential Means with Applications to Quality Control" (2009). Student Research Conference Select Presentations. Paper 16.