When monitoring a process's output with a quantitative variable either an R-chart or an -chart is used,but never both.

Question

When monitoring a process's output with a quantitative variable either an R-chart or an  -chart is used,but never both.

Quizplus · Accepted Answer

Both R-chart and 11eac5d1_2910_e0b3_888f_850f65915460_TB7749_11-chart are used to monitor process output with a quantitative variable. While R-chart monitors the variability or dispersion of the process, 11eac5d1_2910_e0b3_888f_850f65915460_TB7749_11-chart monitors the process mean or average. Therefore, these charts can be used together to provide a comprehensive analysis of the process performance.

When Monitoring a Process's Output with a Quantitative Variable Either