Most studies of quality improvement deal with ordered categorical data from industrial experiments. Accounting for the ordering of such data plays an important role in effectively determining the optimal factor level of combination. This paper utilizes the correspondence analysis to develop a...

There are a number of possible statistical procedures that can be used for analyzing ordinal categorical data collected in a designed experiment. In this paper we present an approach which allows us to do a preliminary examination of the data set to see whether or not the statistical results are...