Six Sigma Black Belt MCQ

In Measurement System Analysis the variance contribution allowed for Gage R & R is a maximum of:

10%

20%

30%

15%

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The mentor for a Green Belt exam should be at least be designated what?

Master Black Belt

Black Belt

Champion

Green Belt

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The distribution of the average of n samples will follow which distribution as n becomes large?

Exponential

Normal

Poisson

Lognormal

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Which of the following statements about the Student T distribution are true? i) It has a mean of t=0 ii) As the sample size reduces, the student t distribution gets closer to the standard normal distribution iii) The standard deviation of the t distribution is always greater than 1

1 & 2 only

1,2 & 3

None

2 & 3 only

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The surface appearance of a refrigerator is not satisfactory. This statement is the outcome of what analysis/evaluation?

Range chart analysis

Variable Measurement

Attribute Measurement

Mean chart analysis

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Cpk has been calculated for a stable, non-automated process. Then, the operator is told to check samples at random and make centering adjustments based on the sample readings. One would expect that:

The outcome is unpredictable

Process capability has improved

Process capability has gotten worse

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If the data set which gives a KS Test p-Value greater than 0.05, the data is called

Significantly Normal

Marginally Normal

Normal

Not Normal

Not Not Normal

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A process resulting in 99% accuracy to customer specifications, is equivalent to what Sigma level (Process Capability)?

4 Sigma

5 Sigma

3.8 Sigma

6 Sigma

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