If a company is using an chart for a given process with measurement data,it is generally not important or necessary to use an R chart or s chart.

Question

If a company is using an  chart for a given process with measurement data,it is generally not important or necessary to use an R chart or s chart.

Quizplus · Accepted Answer

The given chart is a control chart for variable data and does not indicate whether the process is in control or out of control. In order to assess the process variability, an R chart or s chart should also be used along with the control chart for variable data. Therefore, it is necessary to use an R chart or s chart in addition to the given control chart.

If a Company Is Using an Chart for a Given