SIX SIGMA GREEN BELT EXAMS SCRIPT 2026/2027
QUESTIONS AND SOLUTIONS RATED A+
✔✔When an inspection process rejects conforming product, what type of error is being
made?
a. α
b. β
c. σ
d. H sub 0 - ✔✔a. α
✔✔The critical path for a project is best described as the
a. Sequence of steps with the highest costs
b. Tasks in the project that have the highest risk of failure
c. Sum of the tasks with the shortest time requirements
d. Longest path from the start to the completion of the project - ✔✔d. Longest path from
the start to the completion of the project
✔✔Statistical process control (SPC) is best defined as the use of
a. Pareto charts to understand and control a process
b. Inputs to control critical and complex processes
c. Statistical methods to identify and remove manufacturing errors
d. Statistical methods to understand and control a process - ✔✔d. Statistical methods to
understand and control a process
✔✔A measurement system analysis is designed to assess the statistical properties of
a. Gage variation
b. Process performance
c. Process stability
d. Engineering tolerances - ✔✔c. Process stability
✔✔When calculating the C sub P index, what does the standard deviation represent in
the formula C sub P = (USL-LSL)/6sigma
a. The tolerance interval
b. The confidence interval for the result
c. The range of the process
d. The variance of the index - ✔✔a. The tolerance interval
✔✔After the customers and their needs are identified, what is the next step in collecting
Voice of the Customer (VOC) data?
,a. Refine customer needs
b. Create specifications
c. Determine critical to quality characteristics
d. Collect and analyze data - ✔✔d. Collect and analyze data
✔✔Which type of Failure Mode and Effects Analysis (FMEA) is used to study and
evaluate manufacturing and assembly?
a. System
b. Service
c. Design
d. Process - ✔✔d. Process
✔✔Which type of control chart is appropriate for attribute data?
a. np chart
b. X-bar - R chart
c. MX-bar - MR chart
d. Median chart - ✔✔a. np chart
✔✔Which is the best description of mutually exclusive events?
a. Events A and B cannot occur at the same time
b. Events A and B both occur at the same time
c. All sample points not contained in event A
d. All sample points contained in event A - ✔✔a. Events A and B cannot occur at the
same time
✔✔Which of the following activities would be performed as part of project closure?
a. Review opportunities
b. Value stream mapping
c. Feasibility study
d. SWOT analysis - ✔✔a. Review opportunities
✔✔Which statement describes TPM?
a. A high-level process map that depicts the suppliers, inputs, processes, outputs, and
customers of a process
b. An approach that orders product, service, or process design to minimize the potential
for faws or errors that may be built into a design
c. A proactive quality tool that helps you to identify, define, prioritize, and eliminate
known or potential failures of the design, system, or manufacturing process
,d. A proactive approach with the goal of removing deficiencies from machines to
minimize or eliminate defects and downtime - ✔✔d. A proactive approach with the goal
of removing deficiencies from machines to minimize or eliminate defects and downtime
✔✔During which phase of the risk management methodology are actions put in place to
mitigate project risk?
a. Risk handling
b. Risk assessment
c. Risk analysis
d. Risk planning - ✔✔c. Risk analysis
✔✔When performing a one-way analysis of variance (ANOVA) test, how many different
degrees of freedom must be calculated?
a. 2
b. 3
c. 1
d. 4 - ✔✔b. 3
✔✔In creating a customer satisfaction survey, you want to measure the strength of the
respondent's opinion while limiting the number of answer choices available to them.
Which question format would be most appropriate?
a. Open-ended
b. Likert scale
c. Fill-in-the-blank
d. Yes/No - ✔✔b. Likert scale
✔✔Which tool can be used to resolve upstream delays that cascade through a system?
a. Visual factory
b. Continuous flow manufacturing
c. Prioritization matrices
d. Statistical process control - ✔✔b. Continuous flow manufacturing
✔✔Which method would be used to correct the problem of team members discussing
issues unrelated to the purpose of a team meeting?
a. Ensure team members are actively listening
b. Ask team members to provide relevant data
c. Ensure team members follow the prearranged agenda
d. Ask team members to provide different solutions to the problem - ✔✔c. Ensure team
members follow the prearranged agenda
, ✔✔Which tool can be specifically used to help set priorities for key process output
variables?
a. Check Sheets
b. Attribute Charts
c. Relational Matrix
d. Control Charts - ✔✔c. Relational Matrix
✔✔Which Six Sigma concept involves creating value for stakeholders by understanding,
controlling, and improving overall business processes?
a. QFD
b. FMEA
c. BPM
d. PDCA - ✔✔c. BPM
✔✔Which hypothesis test can be used to detect a difference in three or more population
means?
a. F test
b. ANOVA
c. Z test
d. Paired t test - ✔✔b. ANOVA
✔✔Which graphical method for displaying data is also known as a correlation chart?
a. Stem and leaf plot
b. Scatter diagram
c. Pareto diagram
d. Box-and-whisker plot - ✔✔b. Scatter diagram
✔✔What is the correct order of control plan phases as defined by the Advanced Product
Quality Planning and Control Plan Reference Manual?
a. Pre-launch, prototype, production
b. Prototype, pre-launch, production
c. Production, pre-launch, prototype
d. Production, prototype, pre-launch - ✔✔b. Prototype, pre-launch, production
✔✔What does the design matrix typically include for a design of experiment (DOE)?
a. Alpha and beta risks
b. High and low levels
c. Confidence interval
d. Selection bias - ✔✔b. High and low levels
QUESTIONS AND SOLUTIONS RATED A+
✔✔When an inspection process rejects conforming product, what type of error is being
made?
a. α
b. β
c. σ
d. H sub 0 - ✔✔a. α
✔✔The critical path for a project is best described as the
a. Sequence of steps with the highest costs
b. Tasks in the project that have the highest risk of failure
c. Sum of the tasks with the shortest time requirements
d. Longest path from the start to the completion of the project - ✔✔d. Longest path from
the start to the completion of the project
✔✔Statistical process control (SPC) is best defined as the use of
a. Pareto charts to understand and control a process
b. Inputs to control critical and complex processes
c. Statistical methods to identify and remove manufacturing errors
d. Statistical methods to understand and control a process - ✔✔d. Statistical methods to
understand and control a process
✔✔A measurement system analysis is designed to assess the statistical properties of
a. Gage variation
b. Process performance
c. Process stability
d. Engineering tolerances - ✔✔c. Process stability
✔✔When calculating the C sub P index, what does the standard deviation represent in
the formula C sub P = (USL-LSL)/6sigma
a. The tolerance interval
b. The confidence interval for the result
c. The range of the process
d. The variance of the index - ✔✔a. The tolerance interval
✔✔After the customers and their needs are identified, what is the next step in collecting
Voice of the Customer (VOC) data?
,a. Refine customer needs
b. Create specifications
c. Determine critical to quality characteristics
d. Collect and analyze data - ✔✔d. Collect and analyze data
✔✔Which type of Failure Mode and Effects Analysis (FMEA) is used to study and
evaluate manufacturing and assembly?
a. System
b. Service
c. Design
d. Process - ✔✔d. Process
✔✔Which type of control chart is appropriate for attribute data?
a. np chart
b. X-bar - R chart
c. MX-bar - MR chart
d. Median chart - ✔✔a. np chart
✔✔Which is the best description of mutually exclusive events?
a. Events A and B cannot occur at the same time
b. Events A and B both occur at the same time
c. All sample points not contained in event A
d. All sample points contained in event A - ✔✔a. Events A and B cannot occur at the
same time
✔✔Which of the following activities would be performed as part of project closure?
a. Review opportunities
b. Value stream mapping
c. Feasibility study
d. SWOT analysis - ✔✔a. Review opportunities
✔✔Which statement describes TPM?
a. A high-level process map that depicts the suppliers, inputs, processes, outputs, and
customers of a process
b. An approach that orders product, service, or process design to minimize the potential
for faws or errors that may be built into a design
c. A proactive quality tool that helps you to identify, define, prioritize, and eliminate
known or potential failures of the design, system, or manufacturing process
,d. A proactive approach with the goal of removing deficiencies from machines to
minimize or eliminate defects and downtime - ✔✔d. A proactive approach with the goal
of removing deficiencies from machines to minimize or eliminate defects and downtime
✔✔During which phase of the risk management methodology are actions put in place to
mitigate project risk?
a. Risk handling
b. Risk assessment
c. Risk analysis
d. Risk planning - ✔✔c. Risk analysis
✔✔When performing a one-way analysis of variance (ANOVA) test, how many different
degrees of freedom must be calculated?
a. 2
b. 3
c. 1
d. 4 - ✔✔b. 3
✔✔In creating a customer satisfaction survey, you want to measure the strength of the
respondent's opinion while limiting the number of answer choices available to them.
Which question format would be most appropriate?
a. Open-ended
b. Likert scale
c. Fill-in-the-blank
d. Yes/No - ✔✔b. Likert scale
✔✔Which tool can be used to resolve upstream delays that cascade through a system?
a. Visual factory
b. Continuous flow manufacturing
c. Prioritization matrices
d. Statistical process control - ✔✔b. Continuous flow manufacturing
✔✔Which method would be used to correct the problem of team members discussing
issues unrelated to the purpose of a team meeting?
a. Ensure team members are actively listening
b. Ask team members to provide relevant data
c. Ensure team members follow the prearranged agenda
d. Ask team members to provide different solutions to the problem - ✔✔c. Ensure team
members follow the prearranged agenda
, ✔✔Which tool can be specifically used to help set priorities for key process output
variables?
a. Check Sheets
b. Attribute Charts
c. Relational Matrix
d. Control Charts - ✔✔c. Relational Matrix
✔✔Which Six Sigma concept involves creating value for stakeholders by understanding,
controlling, and improving overall business processes?
a. QFD
b. FMEA
c. BPM
d. PDCA - ✔✔c. BPM
✔✔Which hypothesis test can be used to detect a difference in three or more population
means?
a. F test
b. ANOVA
c. Z test
d. Paired t test - ✔✔b. ANOVA
✔✔Which graphical method for displaying data is also known as a correlation chart?
a. Stem and leaf plot
b. Scatter diagram
c. Pareto diagram
d. Box-and-whisker plot - ✔✔b. Scatter diagram
✔✔What is the correct order of control plan phases as defined by the Advanced Product
Quality Planning and Control Plan Reference Manual?
a. Pre-launch, prototype, production
b. Prototype, pre-launch, production
c. Production, pre-launch, prototype
d. Production, prototype, pre-launch - ✔✔b. Prototype, pre-launch, production
✔✔What does the design matrix typically include for a design of experiment (DOE)?
a. Alpha and beta risks
b. High and low levels
c. Confidence interval
d. Selection bias - ✔✔b. High and low levels
