Six Sigma refers to a process whose output has 100% of its data points within 8 Standard Deviations from the Mean.

Question

Options

• ATrue
• BFalse

• A
  94% (44)
• B
  6% (3)

Explanation

Important note: The "correct answer" provided here appears to be incorrect based on the actual definition of Six Sigma. Option B (False) is the factually accurate answer.

Why the statement is False:

Six Sigma is defined as a process whose output falls within 6 standard deviations (sigma) from the mean - not 8. The name itself encodes the definition: six sigma = 6σ. Additionally, six standard deviations do not capture 100% of data; they capture approximately 99.99966% of outputs (equivalent to 3.4 defects per million opportunities). A normal distribution theoretically extends infinitely, so no finite sigma range captures 100%.

The statement contains two errors:

1. "8 Standard Deviations" - should be 6
2. "100% of its data points" - should be ~99.99966%

Memory tip: The "Six" in Six Sigma is the standard deviations - 6σ. Think: the name literally tells you the answer. If a question claims a different number (like 8), or claims 100% coverage, it's False.

You may want to verify this question with your course material or instructor, as the marked answer (A) contradicts the universally accepted definition of Six Sigma.

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