Control charts have two general uses in an improvement project. Undeniably, the most common application is as a tool to monitor process stability and control. A less common, although some might ...

Quality Control (QC) laboratories are responsible for Stage 3 in the lifecycle of analytical procedures, Continued Procedure Performance Verification. In the lifecycle approach, the QC laboratory ...

Traditional control charts, however, cannot be used for many ecological applications because they do not handle multivariate data, and individual counts of species abundances do not generally fulfill ...

Traditional statistical process control charts assume that observations are independent and normally distributed about some mean. We investigate the robustness of traditional charts to data ...