If and R charts are used to control a manufacturing process,an ______ chart is analyzed first and brought into a state of statistical control before preparing the _______ chart.
A) R,
B), R

Question

If and R charts are used to control a manufacturing process,an ______ chart is analyzed first and brought into a state of statistical control before preparing the _______ chart.
A) R, 
B), R

Quizplus · Accepted Answer

The R chart measures the variability within a sample, while the X̄ chart measures the mean value of the sample. Therefore, the R chart should be analyzed first and brought into a state of statistical control before preparing the X̄ chart. This ensures that the process is stable and the measurements are consistent before analyzing the mean values.

If and R Charts Are Used to Control a Manufacturing