When using $\bar { X }$
and R charts to analyze and improve a process,first,the $\bar { X }$
chart is analyzed and the necessary action(s)to correct assignable causes of variation is (are)taken before the R chart is analyzed.

Question

When using $\bar { X }$ 
and R charts to analyze and improve a process,first,the $\bar { X }$ 
chart is analyzed and the necessary action(s)to correct assignable causes of variation is (are)taken before the R chart is analyzed.

Quizplus · Accepted Answer

The R chart should be analyzed first to ensure the process variability is in control before analyzing the $\bar{X}$ chart for process mean control.

When Using Xˉ\bar { X }Xˉ And R Charts to Analyze and Improve a Process,first,the

When Using $\bar { X }$ And R Charts to Analyze and Improve a Process,first,the