This example illustrates how you can use a normal Q-Q plot to estimate the capability index C pk.The data used here are the distance measurements provided in the "Creating a Normal Quantile-Quantile ...

Output 10.1.1: Normal Quantile-Quantile Plot of Nonnormal Data The nonlinearity of the points in Output 10.1.1 indicates a departure from normality. Since the point pattern is curved with slope ...