Multiple choice six-sigma green-belt

A GB is having 3 factors X1, X2 and X3. Factors X1 and X2 are having 3 levels and the factor X3 is having 4 levels. What should be the number of trials?

  1. 10

  2. 16

  3. 36

  4. 13
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a full factorial design, the total number of trials equals the product of all factor levels. Here: X1 (3 levels) × X2 (3 levels) × X3 (4 levels) = 3 × 3 × 4 = 36 trials. This ensures every possible combination of factor levels is tested. The other options (10, 16, 13) don't match this calculation.

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