This example illustrates how to combine upper and lower one-sided cusum charts for means in the same ... hour / nochart mu0 = 8.100 /* target mean */ sigma0 = 0.050 /* known standard deviation */ ...

Control charts usually present a graphic display of process stability and/or instability with time, from which the you can determine mean and standard deviation. There are two main types of ...

This example uses the GPLOT procedure and the DATA step function PROBNORM to plot operating characteristic (OC) curves for charts with 3 limits. An OC curve is ...