What is a control chart that monitors changes in the dispersion or variability of a process?
A) x-bar chart
B) R-chart
C) p-chart
D) c-chart
E) OC chart

Question

Quizplus · Accepted Answer

An R-chart is used to monitor changes in the dispersion or variability of a process. It plots the range of a subgroup, which is the difference between the highest and lowest values. As the range increases or decreases, it indicates a change in variability.

What Is a Control Chart That Monitors Changes in the Dispersion