Six Sigma Green Belt Multiple Choice Questions and Answers for Practice

16. To calculate 99.97% statistical control limits, the practical use of sigma level should be:

1. +/- 3 sigma
2. +/- 2 sigma
3. +/- 1 sigma

17. What are the ways of capturing VOC

1. Surveys
2. Focus Groups
3. Brainstorming
4. A&B

18. What is the correct order of the six-sigma phases?

1. Define, Analyze, Improve, Control, Measure
2. Define, Analyze, Measure Improve, Control
3. Define, Measure, Analyze, Improve, Control
4. Define, Measure, Analyze, Control, Improve

19. What type of data is illustrated by discrete distributions?

1. Variable data
2. Ordinal data
3. Continuous data

20. When the sampling method used creates a difference between the result obtained from the sample and the actual population value, the difference is known as

1. correlation
2. precision
3. accuracy
4. bias

21. Which of the following is a commonly accepted level for alpha risk?

1. 0.05
2. 0.5
3. 0.7
4. 0.95

22. Which of the following is a non parametric test

1. Regression
2. 2 tailed 2 sample t test
3. ANOVA
4. Kruksal test

23. Which of the following is the key objective of a six sigma project?

1. Developing detailed control charts for critical processes
2. Developing a matrix to understand the hows and whats of a problem process
3. Reducing variation in critical processes
4. Reducing investment costs while improving output quality

24. Which of the following measures is increased when process performance is improved?

1. Variability range
2. Capability index
3. Repeatability index
4. Specification limits

25. Which of the following measures is used to show the ratio of defects to units?

1. DPU
2. DPO
3. DPMO
4. PPM

26. Which of the following shapes is used to present a termination point in a flowchart?

1. Rectangle
2. Diamond
3. Arrow
4. Oval

27. Which of the following terms is used to describe the risk of a type I error in a hypothesis test?

1. Power
2. Confidence level
3. Level of significance
4. Beta risk

28. Which of the following tools can be used to identify and quantify the source of a problem?

1. Affinity diagram
2. Control chart
3. Pareto chart
4. Quality function deployment

29. Which of the following tools is used extensively in quality function deployment (QFD)?

1. Affinity diagram
2. Matrix diagram
3. Cause and effect diagram
4. Activity network diagram

30. Which of the following tools is used to identify potential events and contingencies for an implementation plan?

1. PERT chart
2. Process decision program chart
3. Fishbone diagram
4. House of quality