Enter a known value for the total variation, which is the part-to-part variation plus the measurement system variation. Use the drop down to specify whether to use the historical standard deviation to estimate the process variation or to use the parts in the study to estimate the process variation.
When you select Use parts in the study to estimate process variation, Minitab displays a %Process column in a table and in the Components of Variation graph. The %Process column shows the percentage of process standard deviation taken up by each variance component.