What is Correlation Analysis and How is it Performed ?
February 12, 2025
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The 5 why method or the Root Cause analysis method that has been described in the Tools section plays an important role in determining that the X’s are recorded at actionable level. In this implementation of the 5 why tool, there is a slight variation from the standard methodology and hence it has been explained in the context of Actionable X’s below:
The 5 why method is a non-statistical method to convert vital few inputs to their actionable level. It does not require any elaborate mathematical testing but rather simply relies on brainstorming the reasons and digging deeper and deeper in the process.
The 5 in the 5 why’s is a mere abstraction. The actual number of iterations required to come up with an actionable X will be less or more. However in almost all cases, actionable levels are reached within 5 iterations.
The 5 whys analysis for finding actionable X’s is therefore a combination of the regular root cause analysis and brainstorming. Instead of relying on expert knowledge, the collective knowledge of the Six Sigma project team is used here.
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