An I-MR chart is a control chart used for process stability. It relies on continuous data. They only provide a single view of ...

A flow chart, or flow diagram, is a graphical representation of a process or system that details the sequencing of steps required to create output. A typical flow chart uses a set of basic symbols to ...

Management sits around the conference table, reviewing the most recent quality data regarding expense report rejections. “I don’t understand,” states the director of the finance department. “We held a ...

This paper establishes a criterion that measures approximately the average net income of a process under surveillance of an X̄ chart when the process is subject to random shifts in the process mean.