Multiple choice six-sigma green-belt

Which of the following is not TRUE in Process Sigma Calculations

  1. When Data is discrete, we can use DPMO method

  2. When data is continuous and normal, we can use area under the curve method

  3. When Data is discrete, we can use area under the curve method

  4. Zst = Zlt + 1.5
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Process sigma calculations use different methods depending on data type. For discrete data, DPMO (Defects Per Million Opportunities) is the appropriate method. For continuous data that follows a normal distribution, the area under the normal curve method is used. Option C incorrectly suggests using area under curve for discrete data, which is not standard practice - discrete data requires DPMO or similar discrete methods. Option D correctly states the Z shift formula.

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