Learn how to create and interpret a normal probability plot in SPC, and what to do if your data is not normal.

Vector graph or chart of box and whisker plot for the standard normal distribution isolated on white background. Probability density function of a normal distribution or population with boxplot above ...

This paper considers the problem of choosing a plotting position to use in constructing a normal probability plot. Previous recommendations have focused primarily on choosing a position so that the ...

This paper introduces the normal probability plot correlation coefficient as a test statistic in complete samples for the composite hypothesis of normality. The proposed test statistic is conceptually ...