An x-bar and R-chart constructed to monitor and control a process use same raw data.

Question

Quizplus · Accepted Answer

An x-bar and R-chart are both used to monitor and control a process, but they use different calculations based on the same raw data. The x-bar chart tracks the average or mean of a sample, while the R-chart tracks the range or variability of the sample. Therefore, both charts use the same data, but they analyze different aspects of the process.

An X-Bar and R-Chart Constructed to Monitor and Control a Process