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Topic What is a z curve?

What is a z curve?

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This topic contains 1 reply, has 2 voices, and was last updated by Profile photo of Chris Butterworth Chris Butterworth 13 years, 10 months ago.

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    What is Z-curve? How it is different from normal distribution curve for six sigma?

    Profile photo of Chris Butterworth
    Chris Butterworth
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    The z curve refers to the standard normal distribution. That is, a normal distribution with mean = zero and std dev =1.0. It is this distibution for which areas under the curve are tabled in most statistics textbooks.
    The “normal curve for six sigma” in your question is a theoretical curve used to explain concepts and it is the same as the z curve.

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