It charts the numeric variable AGE, with the frequency statistic. Because the values of AGE are continuous, the procedure automatically divides the ages into ranges and displays the midpoint of each ...

Revision of statistical process control procedures, evaluation of control chart performance and statistical design of charts, control of high quality process, multivariate process control, new process ...

A control chart consists of several ... The upper control limit is one key to process improvement actions. The upper control ...