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Exam ICBB topic 1 question 15 discussion

Actual exam question from Six Sigma's ICBB
Question #: 15
Topic #: 1
[All ICBB Questions]

Which statement(s) are correct about the Factorial Plot shown here? (Note: There are 3 correct answers).

  • A. When the cutting speed increased from low to high level, the tool age increases
  • B. The coefficient of the metal hardness is positively related to the output of tool age
  • C. The coded coefficient is lower for cutting speed than the cutting angle related to the output of tool age
  • D. These plots prove a statistically significance factor with 95% confidence
  • E. These plots are an example of interaction plots
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Suggested Answer: ABC 🗳️
by InvisibleBeing at June 10, 2023, 3:05 a.m.

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InvisibleBeing
1 year, 3 months ago
Selected Answer: ABC
Easy way to remember the answers: Instead of memorizing ABC, focus on the incorrect answers because they are easier to spot. For Option E: Interaction Plots are where straight lines are drawn in the middle of the graph with Y and X axis. For option D: There is no way to tell confidence level, by just looking at the cube. I don't think there is such a thing called "Confidence Levels" with Cube-Plots.
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