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Mistake-Proofing

Mistake-proofing, or its Japanese equivalent poka-yoke (pronounced PO-ka yo-KAY)(also known as Fool-proofing, error-proofing, and fail-safing), is the use of any automatic device or method that either makes it impossible for an error to occur or makes the error...

Median

In statistics and probability theory, the median is the value separating the higher half from the lower half of a data sample, a population, or a probability distribution. For a data set, it may be thought of as “the middle” value. The basic feature of the...

Arithmetic Mean: Guide to Understanding and Calculating Averages

The arithmetic mean serves as one of the most fundamental concepts in mathematics and statistics, playing a crucial role in data analysis, research, and everyday decision-making. This essential measure of central tendency helps us understand datasets and make informed...

Master Black Belt

The utmost level in the Six Sigma hierarchy is the Master Black Belt. Also known as MBB, this professional has achieved the maximum degree of certification and training in the whole Six Sigma process. Because of the extensive and comprehensive training, they have the...

Main Effects Plot

A main effects plot is a graphical representation that displays how different levels of an independent variable affect the dependent variable while averaging across all other factors. Specifically, this visualization tool shows the average response value for each...
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