Instability is most readily apparent on the:
A) chart.
B) R chart.
C) np chart.
D) I chart.

Name: Instability is most readily apparent on the: A) chart. B) R chart. C) np chart. D) I chart.
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Question

Instability is most readily apparent on the:
A) chart. 
B) R chart. 
C) np chart. 
D) I chart.

Quizplus · Accepted Answer

The R chart is used to monitor the variability or dispersion of a process over time. If there is instability in the process, it will show up on the R chart as an increase in the range of variation. Therefore, the R chart is the best choice for identifying instability in a process.

Instability Is Most Readily Apparent on The