SPECIAL USES FOR SHEWHART CHARTS
This chapter describes a number of modifications to Shewhart charts that may be useful in special situations. When applying Shewhart charts to measures from health care processes, some situations arise where the basic methods need to be modified. This chapter addresses some of these common situations. The objective is to make the reader aware of these complexities and learn how to deal with them when they show up in improvement work.
The following situations are discussed in this chapter: Shewhart charts with a changing center line; Shewhart charts with seasonal effects; transformation of data with Shewhart charts; Shewhart charts for autocorrelated data; Shewhart charts for attribute data with large ...