A plot of the sample ranges over regular time intervals is called a(n)_______.
A) $\bar { x }$ chart
B)R chart
C)p chart
D)c chart
E)S chart

Question

Quizplus · Accepted Answer

A plot of the sample ranges over regular time intervals is called an R chart. The R chart is used to monitor the variability of a process in terms of the range of the subgroups. The other charts mentioned are used for different purposes.

A Plot of the Sample Ranges Over Regular Time Intervals xˉ\bar { x }xˉ

A Plot of the Sample Ranges Over Regular Time Intervals $\bar { x }$