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Useful Tools

PHAST-TM

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This program has been developed for the purpose of conducting post hoc analysis on fixed effects after an initial Analysis of Variance has been conducted and rejected. It has the capability to run four approaches and six procedures. This software may be used for both analysis of dispersion (utilizing Levene’s Test or Levene’s Improved Test) and central tendency.

When testing for Dispersion the Means and Variances should be calculated using the data from the Absolute Deviation from the Averages (Levene’s Test) or the Absolute Deviation from the Medians (Levene’s Improved Test). When testing for Central Tendency the Means and Variances should be calculated using the raw data.

Click here to download PHAST TM. It is free software, but the author does retain copyright. The terms of use are included in the program.

 

RSD and Sample Size

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This spreadsheet helps you understand how the Random Sampling Distribution of the means is important in sample size calculations.  You can enter the population parameters μ (mean) and σ (standard deviation) and see what effect changing the Δ (effect size) α (Type I error) has on β (Type II error).

RSD and Sample Size

 



Our Economic Stimulus Package: $200 Off (click to learn more)

During this recent economic downturn, we have been contacted by a number of people who are looking to add more qualifications to their resume, either to increase their value at their current job or open some options as they seek employment after a layoff, as well as businesses looking for training with a high return on investment.  Six Sigma Online would like to do what little we can to help you out if this is your situation.

Six Sigma Online already offers one of the lowest price ways to get your Black Belt while still offering much greater depth of knowledge than you can get anywhere else.  In addition, for a limited time we will offer you a 10% discount to make it that much easier to get the skills you need to achieve your employment objectives.  Just go to the order page and it is automatically deducted during the time of this offer.

Businesses right now desperately need to find ways to improve profit and reduce the costs of quality.  Black Belts are the "edge of the blade" in this endeavor and so are in demand.  Our training will maximize the success of your projects with knowledge you will need as you encounter real-world problems to solve.  Here at Six Sigma Online, we hope that our training, and the discount above, will go some way to help individuals and businesses survive these tough times.

 

Unemployed in Colorado? Get state help for your Six Sigma training!

On October 15, 2010 The ROI Alliance (Six Sigma Online's parent company) became an approved provider of Six Sigma Black Belt and Master Black Belt training for Colorado's Workforce Investment Program (WIP), which helps people who are unemployed pay for the training they need to succeed in this competitive market place.  If you are looking for a job that is in high-demand, and you meet the requirements of the WIP, they may be able to help pay for your Six Sigma training!

 


Random Heresy

A colleague of mine made an interesting point about how we teach and learn experimental design techniques, and I thought I'd explore the subject further. He observed that the order that we teach statistics is almost exactly opposite of how one would actually use them. So this month I will describe the different tools and how they would be used in the actual order you might use them.

Read more...

In the News

Six Sigma's lead instructor Steven Ouellette wrote an article with Dr. Jeffrey Luftig on "The Decline of Ethical Behavior in Business."

 


 

Six Sigma Online's lead instructor Steven Ouellette was profiled in the June 2008 issue of Quality Digest magazine. If you want to learn more about Steve's peculiar view of the world, as well as what he studied for a year in Europe, read the profile online.