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Showing posts from April, 2010

There is a great article on isixsigma.com about the "Use of Theory of Constraints to Better Focus Lean Six Sigma Efforts"

There is a great article on isixsigma.com about the "Use of Theory of Constraints to Better Focus Lean Six Sigma Efforts" http://ping.fm/cXDTP About Six Sigma Development Solutions, Inc. We are Certified as an Accredited Training Organization with the International Association of Six Sigma Certification ( IASSC ) “The IASSC Accredited Training Organization (ATO) designation validates Six Sigma Development Solutions, Inc. has demonstrated adequate management systems, courseware with a high degree of correlation to the subject matter contained in the IASSC Bodies of Knowledge, delivery schema consistent with such content and highly qualified instructors.” We Provide  Public  Lean Six Sigma Lean Six Sigma  Green Belt  and Lean Six Sigma  Black Belt  Certification Training Courses in 34 Cities across the globe. Our Training Centers are located in:  Albuquerque, New Mexico |  Atlanta, Georgia  |  Austin, Texas  | ...

Simple Hypothsis Testing Roadmap in Lean Six Sigma ...

I was teaching a Black Belt course in Washington, DC and i was asked to simplify the basic roadmap in a Hypothesis Test. In the example below, we are testing whether there is a correlation between two variables. Example: 1. What is the practical question? - Does an increase in tire pressure cause an increase in tread wear? 2. What is the X? - Tire Pressure 3. What is the Y? (What am i measuring) - Tread Wear 4. State the Null (Ho) and Alternative (Ha) Hypothesis Note* in this example we are using Correlation: the Null Hypothesis is "r=0' (or there is no correlation) - Null Hypothesis (Ho) = There is no relationship between tire pressure and tread wear - Alt Hypothesis (Ha) = There is a relationship between tire pressure and tread wear 2. Gather data, Run the analysis and determine the P-Value - Run a Corellation (the following metrics are an example of the outcome): - r=.554, p-Value = .0228 3. Determine the Alpha Risk (100% - Confidence Interval) - In ...