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, 5 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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