September 19, 2017

Introduction to Equal Variance Assumption

January 12, 2016

Use of Equal Variance Assumption with ANOVA The equal variance assumption is important in statistics because it applies to two of the most widely used tools, the two-sample t-test, and Analysis of Variance (ANOVA). Both […]

A Simple ANOVA in Excel

May 21, 2014

A Simple ANOVA in Excel One of the most important steps in any Six Sigma project is the ANOVA or Analysis of Variance.  ANOVA is found in the Analyze phase of the DMAIC methodology (Define-Measure-Analyze-Improve-Control). […]

Six Sigma Regression Sum – ANOVA

June 15, 2013

Six Sigma Regression Sum – ANOVA If you don’t have minitab, no problem. Microsoft Excel does provide powerful statistical analysis. Try this tool to get a simple regression sum ANOVA.  While it’s not as complete […]