IASSC Certified Lean Six Sigma Green Belt (ICGB) — Question 33

The generation of a Regression Equation is justified when we _____________. (Note: There are 4 correct answers).

Answer options

• A. Expect the relationship to be Linear between the output and inputs
• B. Know that there is a non-linear relationship between output and input(s)
• C. Need to understand how to control a process output by controlling the input(s)
• D. Experience several process defects and have no other way to fix hem
• E. When it is very expensive or too late to measure the output

Correct answer: A, C, D, E

Explanation

The correct answers A, C, D, and E highlight scenarios where establishing a regression equation is beneficial for understanding relationships and controlling outcomes. Option B is incorrect as it suggests a non-linear relationship, which does not justify the generation of a regression equation focused on linearity.