The Three-Legged Stool

Sometimes despite your best efforts and a lot of hard work you don’t get the expected results when working on continuous improvement. This can be very frustrating, especially when you are new to Lean Six Sigma. Imagine yourself in each of the following three scenarios. Scenario 1: Your company has offered you the opportunity to … Read more

ANOVA for All Occasions

Authors: Diana Martinez, Ph.D. and Satya Kudapa
Analysis of Variance – commonly shortened to ANOVA – was introduced by the British statistician Sir Ronald Fisher (1890-1962) in 1925. An extremely useful tool for LSS practitioners, ANOVA is a type of hypothesis test to determine whether the means of different populations are the same or different, based on sample data. Note that, despite its name, ANOVA is NOT used to tell if there is a difference in the variance of different populations.
Read More…

Balancing Old and New

Earlier this month I attended two different conferences in which I got a glimpse of the future. The fi­­rst was the Minitab Insights Conference, held in Leesburg, VA (Oct 10-11). Many presenters covered topics that would be familiar to all Green Belts and Black Belts – Design of Experiments, Measurement System Analysis, and Sampling. Other … Read more