What is the benefit of pairing an X̅ chart with an R-chart?
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ASince there is typically space available on the strip chart recorder paper, it is logical to pair the X̅ chart with the R-chart
BThe R-chart is used to ensure that the X̅ remains on track
CThe X̅ chart should be considered in relation to the standard deviation of the subgroups
DIt helps assess the stability of the process (X̅) and identify its variation (R)
✓ Correct answer: D. It helps assess the stability of the process (X̅) and identify its variation (R)In summary, an X̅ chart is utilized to monitor the average or mean of the process and track its changes over time. On the other hand, an R-chart is employed to illustrate process variation by using subgroup ranges. It is important to note that the R-chart does not keep the X̅ on track; its purpose is solely to display variation within the subgroups. To graph the standard deviation of the subgroups, an s-chart is utilized
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