Lean Six Sigma Green Belt (LSSGB) — Question 8

Which statement(s) are true about the Fitted Line Plot shown here? (Note: There are 2 correct answers).

Answer options

• A. When Reactant increases, the Energy Consumed increases.
• B. The slope of the equation is a positive 130.5.
• C. The predicted output Y is close to -18 when the Reactant level is set to 6.
• D. Over 85 % of the variation of the Energy Consumed is explained by the Reactant via this Linear Regression.

Correct answer: C, D

Explanation

Answer C is correct because it accurately reflects the predicted output at the specified Reactant level. Answer D is also right as it indicates that a significant portion of the variation in Energy Consumed can be attributed to Reactant, demonstrating the model's effectiveness. Answers A and B are incorrect as they do not reflect the accurate relationships or values described in the Fitted Line Plot.