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Six Sigma Tools & Templates Analysis of Variance (ANOVA)

Analysis of Variance (ANOVA)

Help for Practitioners Trying to Understand ANOVA Table

Using the analysis of variance (ANOVA) procedure for a Six Sigma project requires assessing results from an ANOVA table, which is not always straightforward. There is an easy way for practitioners to understand the ANOVA procedure.

How To Compare Data Sets – ANOVA

An ANOVA is a guide for determining whether or not an event was most likely due to the random chance of natural variation. Or, conversely, the same method provides guidance in saying with a 95 percent level of confidence that a certain factor (X) or factors (X, Y, and/or Z) were the more likely reason for the event. Learn more about this useful tool and how your everyday spreadsheet program can help you perform a test.

Using ANOVA to Find Differences in Population Means

Analysis of variance (ANOVA) is a statistical technique for determining the existence of differences among several population means. Follow along step by step on this overview of ANOVA.

When Does a Difference Matter? Using ANOVA to Tell

Much of the Six Sigma DMAIC methodology is concerned with finding differences. But often it ends up being more important to learn "does the difference really matter?" ANOVA is an hypothesis testing tool that can help answer that question.

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