ICBB Web TestEngine demo

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

Select all that apply.

• 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