Posts in category Six Sigma


Six SigmaTerms

New Quality Management Tools

In 1976, the Union of Japanese Scientists and Engineers (JUSE) saw the need for tools to promote innovation, communicate information and successfully plan major projects. A team researched and developed the seven new quality control tools, often called the seven management and planning (MP) tools, or simply the seven management tools.

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how to calculate standard deviation
MethodologySix Sigma

Standard Deviation: 6 Steps to Calculation

The Standard Deviation of a set of data describes the amount of variation in the data set by measuring, and essentially averaging, how much each value in the data set varies from the calculated mean. The formula for standard deviation depends on whether you are analyzing population data, in which case it is called σ or estimating the population standard deviation from sample data, which is called s:

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