Six Sigma Lean Yellow Belt Certification Questions Part 3

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Question : 30 of 50

Marks: +1, -0

Which statement(s) are correct about the Factorial Plot shown here?

When the cutting speed increased from low to high level, the tool age increases
The coefficient of the metal hardness is positively related to the output of tool age
The coded coefficient is lower for cutting speed than the cutting angle related to the output of tool age
All of the above

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