%Tolerance is the percent of tolerance for each component.
If the tolerance (Upper spec – Lower spec) is given, the %tolerance is calculated by dividing the Study Var for each component by the specified tolerance.
If only one specification limit is given, the percent tolerance is half the Study Var for each component divided by the one-sided tolerance. The one-sided tolerance is the absolute value of the given specification limit subtracted from the average of all the measurements.
Minitab displays this value only when you enter a process tolerance (Upper spec – Lower spec) or a specification limit in the Options subdialog box.
If L and U are the lower and upper bounds of a variance component, then the confidence interval for the corresponding percent tolerance is:
|k||k is the study constant and the default value is 6|