Anova DOE

To check the significance influence of each factor in the DOE. If a factor is not significant it can bee pooled, so the influence of the non pooled factors is getting bigger. In the example only size is not pooled but Size is still not significant.

Interpretation

• The smaller the p value is the more likely there is a dataset with a significant difference.
• In Develve for a significant difference the p value must be below 0.05.

Colors of the cells

• Green No significant difference
• Yellow Significant difference

Formula Calculating Anova

For each factor

Interactions

Total

Error

Result

With the F value and the degrees of freedom (DFf and DFe) can the program interpolate in a table the p value.

Legend

Degrees of freedom
Sum of squares error
Correction factor
Degrees of freedom one factor
Total amount levels one factor
Sum of squares of one factor

External links

• http://en.wikipedia.org/wiki/Multivariate_analysis_of_variance