Hypothesis Testing in DMAIC Projects
Is hypothesis testing a must in DMAIC projects? Why (not)?
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James, United States
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Yes - Hypothesis Testing is Needed
If the solution is known, just implement it.
Otherwise DMAIC is a method to determine solutions when unknown. DMAIC uses various tools/techniques to sort out/drill down for potential causes. Then make a hypothesis ("Cause A impacts the result") and use facts/data to validate the cause before implementation. If you don't test your hypothesis the wrong potential solution may be implemented. HOW the hypothesis test is conducted may be a better question. But the idea behind hypothesis testing is valid for all DMAIC projects.
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Manuel Razo, Philippines
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DMAIC is a Scientific Method
DMAIC and scientific method are one and the same. So hypothesis testing is a must.... Sign up
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James, United States
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DMAIC is not only a Scientific Method
DMAIC uses scientific methods, but involves more such as risk and change management.... Sign up
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James, United States
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Data Always Leads to Statistics
@Georges Van Cauwenbergh: Except when only provided one data point, we always use statistics to desc... Sign up
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