Tools
7MP Management and Planning Tools
8QC Traditional Quality Control Tools
Failure Mode, Effects, and Criticality Analysis
Maintainability and Availability
Process Decision Program Charts
When to Use Normal Probability Plots
The Normal disribution is widely used in
statistical analysis, due to its well-defined properties. The Normal distribution is assumed in many tests of statistical inference, such as
hypothesis tests, as well as ANOVA.
Tests for normality of residuals is standard practice in regression analysis as a means to verify fit of the regression model.
Normality is also assumed when plotting individuals data (n=1) on a standrd Individual-X control chart.
(see Defining Control Limits).
See also: Interpreting Normal Probability Plots Learn more about the Quality Improvement principles and tools
for process excellence in Six Sigma
Demystified (2011, McGraw-Hill) by Paul Keller,
or his
online Green Belt certification course ($499).
