5.4. Analysis of DOE data

5.4.	Analysis of DOE data

Contents of this section

Prerequisite statistical tools and concepts needed for DOE analyses

Assuming you have a starting model that you want to fit to your experimental data and the experiment was designed correctly for your objective, most DOE software packages will quickly analyze your DOE data. This section will illustrate how to analyze DOE's by first going over the generic basic steps and then showing software examples. The contents of the section are:

DOE analysis steps
Plotting DOE data
Modeling DOE data
Testing and revising DOE models
Interpreting DOE results
Confirming DOE results
DOE examples

Full factorial example
Fractional factorial example
Response surface model example

The examples in this section assume the reader is familiar with the concepts of

ANOVA tables (see Chapter 3 or Chapter 7)

p-values

Residual analysis

Model Lack of Fit tests

Data transformations for normality and linearity