Basic Terms

This is X-Bar. It tells us the Average of a group of numbers (in this case average height). X-Bar is the middle of the curve where we have the largest percentage of men.

s = sigma = Standard Deviation

s is the Greek letter Sigma. It is the distance from the center of the curve to the point where the curve stops curving downward and starts curving outward. We’re interested in points at 1, 2 and 3 Standard Deviations from the Mean (the center).

If we measure 1 Standard Deviation on each side of the center of the curve , 68% of the Area will be between the lines drawn through these points.

The Human Proportions table tells us the Standard Deviation (s - dispersion) of men’s heights is 0.07 meters, so by simple addition and subtraction we know that 68% of the men are between 1.73 and 1.87 meters.

1.8 + 0.07 = 1.87

1.8 - 0.07 = 1.73

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	The. Deming PDCA Cycle	QMS Implementation	FMEA Information	APQP Information
Auditing Information	8-D Problem Solving	Statistics	Error Proofing (Poka Yoke)	Brainstorming
Identifying Waste	Pull Systems	Lead Time Reduction	Planned Maintenance	Quick Setup
Discovering Change	Process Capability - Cp vs. Cpk	Histogram. Animation	Process Loop Animation	Taguchi Loss Function
		Fishbone / Cause and Effects Animation

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