X-bar and R Chart Interactive Model

The X-bar and R-chart Interactive Model is utilized in Chapter 7 to demonstrate how X-bar and R charts are linked to process variability and provide a basis for understanding process capability. Users can move the slider button to increase and decrease the variability. The X-bar shows the 3 sigma upper and lower control limits and 6 sigma upper and lower control limits as well as the customer specification. The R chart is also affected by changes in process variability. The Reset button restores the default setting.