isixsigma on MSN3mon
Navigating Data Analysis: The Importance of Testing for Normality
The simplest way you can test for normality is to do a normal probability plot. The plots below are the output of a popular ...
Simon Fraser University7y
Example 55.8: Creating PP and QQ Plots
title 'QQ Plot'; plot r.*nqq. / noline mse cframe=ligr modellab="'Best' Two-Parameter Model:"; run; Output 55.8.1: Normal Probability-Probability Plot for the Residuals Output 55.8.2: Normal ...
Simon Fraser University7y
Construction and Interpretation of P-P Plots
Unlike Q-Q and probability plots, P-P plots are not invariant to changes in location and scale. See CAPPP2 in the SAS/QC Sample Library For example, the data in the "Getting Started" section are ...