Six Sigma Green Belt UPDATED Exam
Questions and CORRECT Answers
The statistics that summarize a population are referred to as
a. categorical statistics
b. descriptive statistics
c. probabilistic statistics
d. control statistics - CORRECT ANSWER- b. descriptive statistics
Which of the following measures is increased when process performance is improved?
a. Variability range
b. Capability index
c. Repeatability index
d. Specification limits - CORRECT ANSWER- b. Capability index
Which of the following tools can be used to identify and quantify the source of a problem?
a. Affinity diagram
b. Control chart
c. Pareto chart
d. Quality function deployment - CORRECT ANSWER- c. Pareto chart
A correlation analysis is used to provide a numeric value for which of the following types of
relationships between two variables?
a. Random
b. Linear
c. Curvilinear
,d. Causation - CORRECT ANSWER- b. Linear
Which of the following tools is used to translate broad requirements into specific
requirements?
a. A quality control plan
b. The theory of constraints (TOC)
c. A critical to quality (CTQ) tree
d. A process flowchart - CORRECT ANSWER- c. A critical to quality (CTQ) tree
Which of the following tools is used extensively in quality function deployment (QFD)?
a. Affinity diagram
b. Matrix diagram
c. Cause and effect diagram
d. Activity network diagram - CORRECT ANSWER- b. Matrix diagram
Which of the following control charts is used to monitor discrete data?
a. p
b. I&mR
c. Xbar
d. Xbar and R - CORRECT ANSWER- a. p
Which of the following shapes is used to present a termination point in a flowchart?
a. Rectangle
b. Diamond
c. Arrow
d. Oval - CORRECT ANSWER- d. Oval
,For a normal distribution, two standard deviations on each side of the mean would include
what percentage of the total population?
a. 95%
b. 68%
c. 47%
d. 34% - CORRECT ANSWER- a. 95%
Which of the following is a commonly accepted level for alpha risk?
a. 0.05
b. 0.50
c. 0.70
d. 0.95 - CORRECT ANSWER- a. 0.05
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
a. Correlation
b. Precision
c. Accuracy
d. Bias - CORRECT ANSWER- d. Bias
Which of the following is an example of mistake-proofing?
a. Using an Xbar and R chart to prevent errors
b. Using 100% inspection to detect and contain defects
c. Using color coding as an error signal
d. Having the team that created the errors repair them - CORRECT ANSWER- c. Using color
coding as an error signal
, Which of the following is the key objective of a six sigma project?
a. Developing detailed control charts for critical processes
b. Developing a matrix to understand the how's and what's of a problem process
c. Reducing variation in critical processes
d. Reducing investment costs while improving output quality - CORRECT ANSWER- c.
Reducing variation in critical processes
Which of the following tools is used to identify potential events and contingencies for an
implementation plan?
a. PERT chart
b. Process decision program chart
c. Fishbone diagram
d. House of quality - CORRECT ANSWER- b. Process decision program chart
Which of the following measures is used to show the ratio of defects to units?
a. DPU
b. DPO
c. DPMO
d. PPM - CORRECT ANSWER- a. DPU
Which of the following terms is used to describe the risk of a type I error in a hypothesis test?
a. Power
b. Confidence level
c. Level of significance
d. Beta risk - CORRECT ANSWER- c. Level of significance
Positional, cyclical, and temporal variations are most commonly analyzed in
Questions and CORRECT Answers
The statistics that summarize a population are referred to as
a. categorical statistics
b. descriptive statistics
c. probabilistic statistics
d. control statistics - CORRECT ANSWER- b. descriptive statistics
Which of the following measures is increased when process performance is improved?
a. Variability range
b. Capability index
c. Repeatability index
d. Specification limits - CORRECT ANSWER- b. Capability index
Which of the following tools can be used to identify and quantify the source of a problem?
a. Affinity diagram
b. Control chart
c. Pareto chart
d. Quality function deployment - CORRECT ANSWER- c. Pareto chart
A correlation analysis is used to provide a numeric value for which of the following types of
relationships between two variables?
a. Random
b. Linear
c. Curvilinear
,d. Causation - CORRECT ANSWER- b. Linear
Which of the following tools is used to translate broad requirements into specific
requirements?
a. A quality control plan
b. The theory of constraints (TOC)
c. A critical to quality (CTQ) tree
d. A process flowchart - CORRECT ANSWER- c. A critical to quality (CTQ) tree
Which of the following tools is used extensively in quality function deployment (QFD)?
a. Affinity diagram
b. Matrix diagram
c. Cause and effect diagram
d. Activity network diagram - CORRECT ANSWER- b. Matrix diagram
Which of the following control charts is used to monitor discrete data?
a. p
b. I&mR
c. Xbar
d. Xbar and R - CORRECT ANSWER- a. p
Which of the following shapes is used to present a termination point in a flowchart?
a. Rectangle
b. Diamond
c. Arrow
d. Oval - CORRECT ANSWER- d. Oval
,For a normal distribution, two standard deviations on each side of the mean would include
what percentage of the total population?
a. 95%
b. 68%
c. 47%
d. 34% - CORRECT ANSWER- a. 95%
Which of the following is a commonly accepted level for alpha risk?
a. 0.05
b. 0.50
c. 0.70
d. 0.95 - CORRECT ANSWER- a. 0.05
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
a. Correlation
b. Precision
c. Accuracy
d. Bias - CORRECT ANSWER- d. Bias
Which of the following is an example of mistake-proofing?
a. Using an Xbar and R chart to prevent errors
b. Using 100% inspection to detect and contain defects
c. Using color coding as an error signal
d. Having the team that created the errors repair them - CORRECT ANSWER- c. Using color
coding as an error signal
, Which of the following is the key objective of a six sigma project?
a. Developing detailed control charts for critical processes
b. Developing a matrix to understand the how's and what's of a problem process
c. Reducing variation in critical processes
d. Reducing investment costs while improving output quality - CORRECT ANSWER- c.
Reducing variation in critical processes
Which of the following tools is used to identify potential events and contingencies for an
implementation plan?
a. PERT chart
b. Process decision program chart
c. Fishbone diagram
d. House of quality - CORRECT ANSWER- b. Process decision program chart
Which of the following measures is used to show the ratio of defects to units?
a. DPU
b. DPO
c. DPMO
d. PPM - CORRECT ANSWER- a. DPU
Which of the following terms is used to describe the risk of a type I error in a hypothesis test?
a. Power
b. Confidence level
c. Level of significance
d. Beta risk - CORRECT ANSWER- c. Level of significance
Positional, cyclical, and temporal variations are most commonly analyzed in
