Lean Six Sigma Yellow Belt (LSSYB) — Question 6

Six Sigma refers to a process whose output has at least 95% of its data points within 6 Standard Deviations from the Mean.

Answer options

• A. True
• B. False

Correct answer: B

Explanation

The statement is incorrect; Six Sigma actually indicates that 99.99966% of data points should fall within 6 Standard Deviations from the Mean, not just 95%. Therefore, the correct answer is B, as A misrepresents the definition of Six Sigma.