March 20, 2018

Voice of the Process (VOP)

June 17, 2014

The Voice of the Process (VOP) encompasses the entire range of the output (Y) of a process when all of the X’s in the Y = f(x) equation have varied their full range. Voice of […]

Binomial and Poisson Probability Excel Download

June 17, 2014

Binomial and Poisson Probability Excel template now available.  Be sure to visit more great templates at The Binomial and Poisson spreadsheet allows you to make predictions regarding the number of defective items (or defects) in […]

Basic Statistics Excel Template Available for Download

June 17, 2014

Basic Statistics Excel Template Folks , here is the fourth posting of the repost (with permission from Dean Christolear, of course).  From, here is the description of the Basic Statistics Excel Template. This tool […]


June 13, 2014

 Y=f(x) is the mathematical relationship that identifies the inputs (X’s) that need to be controlled and the levels they need to be set at to achieve the desired output (Y) to meet customer requirements. Y=f(x) […]


June 11, 2014

Yield is the ratio of the number of units that meet certain criteria to the number of units that enter into the process. The criteria determines if a yield is Traditional Yield or another kind […]


June 10, 2014

The Z-Distribution is a special case of the normal distribution in which the mean equals zero and the standard deviation equals one. Z-Distribution 


June 10, 2014

A Z-Score is a standardized score for measuring process performance relative to customer requirements.  The Z-Score is very useful in the DFSS methodology. Z-Score


June 5, 2014

A statistical table of probabilities associated with the Z-distribution or standard normal distribution. Z-Table

Z Transform

June 5, 2014

A Z-Transform is an equation that transfers a set of data represented by a normal distribution into a standard normal distribution (mean equals zero and standard deviation equals one) by subtracting the original mean from […]

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