Montgomery (1996) points out that a moving range chart should be interpreted with care because "the moving ranges are correlated, and this correlation may often induce a pattern or runs or cycles on ...

The aim of the study was to compare the performance of two different COMPlog computerised, single letter scoring, visual acuity (VA) measurements against gold standard Early Treatment Diabetic ...

In the manufacture of automotive tires, the diameter of the steel belts inside the tire is measured. The following data set contains these measurements for 30 tires: data tires; input sample diameter ...