08.10.2018 Views

Understanding ASQ-CQA -Knowing The Ways

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Exercise:<br />

Calculate area under the normal curves<br />

between LSL/USL at ±3σ, for, USL-ũ= 1.5σ<br />

Areas under the curve = 0.933<br />

http://onlinestatbook.com/2/calculators/normal_dist.html<br />

3 sigma process: Note due to the limitation of online statistical calculator 3σ process was used to<br />

illustrate the scenario<br />

Charlie Chong/ Fion Zhang

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