An alternative to using the R-chart is the:
A)np-chart.
B)s-chart.
C)c-chart.
D)p-chart.

Question

Quizplus · Accepted Answer

The s-chart, or standard deviation chart, is a good alternative to the R-chart as it also measures the variability of a process. However, unlike the R-chart which measures range or maximum and minimum values, the s-chart measures the standard deviation within subgroups. This makes it more useful in detecting small shifts in process variability. Additionally, the s-chart can be used when the subgroup size is variable or large.

An Alternative to Using the R-Chart Is The