What is ANOVA

ANOVA is a word used to describe Analysis of Variance, in short is a concept/calculation whose purpose of which is to analyze variation and determine it’s significance. It is used to analyze the relationships between inputs and an output and is often used to determine whether variation has a common cause. ANOVA forms part of the Analyze method as part of the DMAIC model.

There are a variety of ANOVA methods of which includes:

One-way ANOVA – tests for differences between independent groups
Two way ANOVA – How different levels of two factors affect a response variable