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Oct 22nd, 2017


When discussing ANOVA, the error variance is the repeatability. Technical variance is the reproducibility.


A,B,C are true

  • microproblem statement is a granular statement of the problem defined in the charter.also a elent in project charter.
  • Multivoting narrows a large list of possibilities to a smaller list of the top priorities or to a final selection. 
  • When it comes to the use of cause and effect diagrams, brainstorming is a critical step. Without proper brainstorming, a fruitful cause and effect diagram cannot be derived.


source...net..for explanation of this option

To validate root causes identified in the Open-Narrow-Close efforts, the team should employ three tools/techniques:

Open phase

In the open phase you want to gather as many ideas as possible. To do that you might use a cause and effect diagram.

Generate as many suspects (people of interest) , Brainstorming (Cause and Effect Diagram, Fish Bone Diagram)

Narrow Phase

Narrow (SME of the team) – eliminate duplicates, narrow thru multi voting to get to a narrower list

– 5 Ys to break biggers Xs to smaller managable X’s

Close Phase

Close – validate using Hypothesis and convict them or set them free

Validated X’s will be worked on to IMPROVE

Apr 8th, 2015

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