Certified Six Sigma Black Belt Exam Certified Six Sigma Black Belt Basic 1

Question 1

Which tool is used to prioritize potential causes of a problem by separating the 'vital few' from the 'trivial many'?

Accepted Answer

Pareto chart

Answer

Fishbone diagram

Answer

Control chart

Answer

Scatter diagram

Question 2

In the DMAIC methodology, during which phase would a team establish baseline process performance metrics?

Accepted Answer

Measure

Answer

Define

Answer

Analyze

Answer

Improve

Question 3

What does a p-value less than 0.05 indicate in hypothesis testing?

Accepted Answer

The result is statistically significant and the null hypothesis is rejected

Answer

The null hypothesis is proven true

Answer

There is insufficient evidence to draw a conclusion

Answer

The sample size is too small

Question 4

Which type of variation in a control chart is caused by identifiable, non-random sources such as equipment failure or operator error?

Accepted Answer

Special cause variation

Answer

Common cause variation

Answer

Natural variation

Answer

Random variation

Question 5

What is the primary purpose of a Measurement System Analysis (MSA) in Six Sigma?

Accepted Answer

To evaluate the accuracy and reliability of the measurement system itself

Answer

To identify root causes of defects

Answer

To calculate the process sigma level

Answer

To map the value stream of a process

Question 6

In Six Sigma, what does the term 'sigma level' of a process primarily describe?

Accepted Answer

How many standard deviations fit between the process mean and the nearest specification limit

Answer

The number of control charts used to monitor the process

Answer

The number of process steps in the value stream

Answer

The total cost of quality for the process