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RSD and Sample Size

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

Random Heresy

Have you ever met people who “do” statistical process control (SPC) only to get some screwy-looking control chart, and then text: OMG I H8 SPC! (If you don’t understand that, ask your nine-year-old child or grandchild.)

Last month we saw how it is not a failure of SPC, but rather an EBKAC

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News Flash

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.

 

 

 

Home Downloads RSD and Sample Size