SIX SIGMA GREEN BELT FINAL EXAMS 2026/2027
QUESTIONS AND SOLUTIONS RATED A+
✔✔Which action is taken in the Control step of the Define, Measure, Analyze, Improve,
Control (DMAIC) process?
a. Root causes of defects and opportunities for improvement are found
b. Data is collected to determine the current status of the process
c. Customers and their requirements and expectations are outlined
d. An ongoing monitoring plan is developed - ✔✔d. An ongoing monitoring plan is
developed
✔✔What could cause a lack of variability in average (X-bar) control chart?
a. Process is over-controlled
b. New machine operator
c. Machine deterioration
d. Incorrectly calculated control limits - ✔✔d. Incorrectly calculated control limits
✔✔A regression analysis has been performed on the study for Customer Complaints
versus Time for Training. The p-value is calculated to be 0.04. What does this indicate
about the Time for Training?
a. It is not a significant statistical factor contributing to customer complaints
b. It is a statistically significant factor contributing to customer complaints
c. It is a practically significant factor contributing to customer complaints
d. It is a highly significant statistical factor contributing to customer complaints - ✔✔b. It
is a statistically significant factor contributing to customer complaints
✔✔Which statement is an example of a goal statement?
a. Our products contain 10 defects on average
b. We experience a 20% drop in sales due to defects in our products
c. We will increase customer satisfaction by reducing product defects by 10%
d. Company shipments are often delayed by 3 days due to a poor packing process -
✔✔c. We will increase customer satisfaction by reducing product defects by 10%
✔✔Your company is building a balanced scorecard. The scope of the card has been
defined. A facilitator has gathered information from senior management and an
executive workshop has been conducted to draft the measures for the balanced
scorecard. What is the next step in the development process?
a. A task team develops an implementation plan
b. Another workshop is held to refine the balanced scorecard
c. The balanced scorecard is periodically reviewed
,d. The facilitator creates a draft of the balanced scorecard - ✔✔d. The facilitator creates
a draft of the balanceD scorecard
✔✔What is known as "a distribution based on counted data"?
a. Continuous Distribution
b. Decision Distribution
c. Discrete Distribution
d. Normal Distribution - ✔✔c. Discrete Distribution
✔✔Under which line item in a control plan would you find information on how
measurements are made?
a. Gage capability
b. Control method
c. Specifications
d. Gage technique - ✔✔d. Gage technique
✔✔Which option best describes an analytical study?
a. A sample is used to make judgments about a population
b. An observation is made about the location, spread, and shape of data distribution
around a central tendency
c. Descriptive statistics are used to describe a current process
d. The nature of what is occurring in a given process is described - ✔✔a. A sample is
used to make judgments about a population
✔✔Which quality pioneer is best known for developing engineering methods for robust
product design?
a. Walter A Shewhart
b. Joseph M. Juran
c. Genichi Taguchi
d. Kaoru Ishikawa - ✔✔c. Genichi Taguchi
✔✔Which design methodology would you use when considering a Six Sigma
improvement project for an existing process?
a. DMADV
b. DPMO
c. DFSS
d. DMAIC - ✔✔d. DMAIC
,✔✔Which project management and planning tool is originally known as an arrow
diagram and incorporates many practices from the program evaluation and review
technique (PERT) and the critical path method (CPM)?
a. Interrelation diagraphs
b. Activity network diagram
c. Prioritization matrix
d. Affinity diagram - ✔✔b. Activity network diagram
✔✔Your company manufactures notebooks for students. What is a true statement
concerning the company's internal and external customers?
a. The retailer that sells the notebooks is an internal customer
b. A high school student is an external customer
c. A line worker's family is an internal customer
c. A line worker is an external customer - ✔✔b. A high school student is an external
customer
✔✔A comparison of engineering specifications to chance causes of variations is done
using which Six Sigma tool?
a. Design of experiments
b. Analysis of variance
c. Pareto analysis
d. Process capability study - ✔✔d. Process capability study
✔✔What is an example of variable data?
a. Welds per unit
b. Number of scratches
c. Depth of a cut
d. Scrapped parts - ✔✔c. Depth of a cut
✔✔Which organizational role supporting Six Sigma initiatives is normally trained as a
black belt and facilitator?
a. Team Member
b. Sponsor
c. Team Leader
d. Coach - ✔✔c. Team Leader
✔✔Which lean concept refers to mistake-proofing a process?
a. Poka-yoke
b. Pull
, c. Queue time
d. Process flow chart - ✔✔a. Poka-yoke
✔✔Given the following Data Set table, which measure of central tendency is equal to 2?
Data: 9 3 2 7 8 2 4 1 5
a. Mean
b. Mode
c. Median
d. Range - ✔✔b. Mode
✔✔What is a work breakdown structure (WBS)?
a. A measurement of a system used to determine the success of a project
b. A detailed listing of activities required to complete a project
c. A cumulative calculation of yield over multiple process steps
d. A secondary metric derived from a primary metric - ✔✔b. A detailed listing of
activities required to complete a project
✔✔Which option refers to a Type I error?
a. Rejecting the null hypothesis when it is true
b. Accepting the null hypothesis when it is true
c. Not rejecting the null hypothesis when it is false
d. Accepting the null hypothesis when it is false - ✔✔a. Rejecting the null hypothesis
when it is true
✔✔Which two design methodologies are commonly used in Design for Six Sigma
(DFSS) projects?
a. DMADV and IDOV
b. DMADV and PDSA
c. DMAIC and PDSA
d. DMAIC and IDOV - ✔✔a. DMADV and IDOV
✔✔Which model describes the factors that make up value in the eyes of the customer?
a. CQFA
b. DMADV
c. SIPOC
d. IDOV - ✔✔a. CQFA
✔✔Given a standard deviation of 2 and a specification limit range from 70 to 130, what
is the ratio of the precision distribution to the precision total?
QUESTIONS AND SOLUTIONS RATED A+
✔✔Which action is taken in the Control step of the Define, Measure, Analyze, Improve,
Control (DMAIC) process?
a. Root causes of defects and opportunities for improvement are found
b. Data is collected to determine the current status of the process
c. Customers and their requirements and expectations are outlined
d. An ongoing monitoring plan is developed - ✔✔d. An ongoing monitoring plan is
developed
✔✔What could cause a lack of variability in average (X-bar) control chart?
a. Process is over-controlled
b. New machine operator
c. Machine deterioration
d. Incorrectly calculated control limits - ✔✔d. Incorrectly calculated control limits
✔✔A regression analysis has been performed on the study for Customer Complaints
versus Time for Training. The p-value is calculated to be 0.04. What does this indicate
about the Time for Training?
a. It is not a significant statistical factor contributing to customer complaints
b. It is a statistically significant factor contributing to customer complaints
c. It is a practically significant factor contributing to customer complaints
d. It is a highly significant statistical factor contributing to customer complaints - ✔✔b. It
is a statistically significant factor contributing to customer complaints
✔✔Which statement is an example of a goal statement?
a. Our products contain 10 defects on average
b. We experience a 20% drop in sales due to defects in our products
c. We will increase customer satisfaction by reducing product defects by 10%
d. Company shipments are often delayed by 3 days due to a poor packing process -
✔✔c. We will increase customer satisfaction by reducing product defects by 10%
✔✔Your company is building a balanced scorecard. The scope of the card has been
defined. A facilitator has gathered information from senior management and an
executive workshop has been conducted to draft the measures for the balanced
scorecard. What is the next step in the development process?
a. A task team develops an implementation plan
b. Another workshop is held to refine the balanced scorecard
c. The balanced scorecard is periodically reviewed
,d. The facilitator creates a draft of the balanced scorecard - ✔✔d. The facilitator creates
a draft of the balanceD scorecard
✔✔What is known as "a distribution based on counted data"?
a. Continuous Distribution
b. Decision Distribution
c. Discrete Distribution
d. Normal Distribution - ✔✔c. Discrete Distribution
✔✔Under which line item in a control plan would you find information on how
measurements are made?
a. Gage capability
b. Control method
c. Specifications
d. Gage technique - ✔✔d. Gage technique
✔✔Which option best describes an analytical study?
a. A sample is used to make judgments about a population
b. An observation is made about the location, spread, and shape of data distribution
around a central tendency
c. Descriptive statistics are used to describe a current process
d. The nature of what is occurring in a given process is described - ✔✔a. A sample is
used to make judgments about a population
✔✔Which quality pioneer is best known for developing engineering methods for robust
product design?
a. Walter A Shewhart
b. Joseph M. Juran
c. Genichi Taguchi
d. Kaoru Ishikawa - ✔✔c. Genichi Taguchi
✔✔Which design methodology would you use when considering a Six Sigma
improvement project for an existing process?
a. DMADV
b. DPMO
c. DFSS
d. DMAIC - ✔✔d. DMAIC
,✔✔Which project management and planning tool is originally known as an arrow
diagram and incorporates many practices from the program evaluation and review
technique (PERT) and the critical path method (CPM)?
a. Interrelation diagraphs
b. Activity network diagram
c. Prioritization matrix
d. Affinity diagram - ✔✔b. Activity network diagram
✔✔Your company manufactures notebooks for students. What is a true statement
concerning the company's internal and external customers?
a. The retailer that sells the notebooks is an internal customer
b. A high school student is an external customer
c. A line worker's family is an internal customer
c. A line worker is an external customer - ✔✔b. A high school student is an external
customer
✔✔A comparison of engineering specifications to chance causes of variations is done
using which Six Sigma tool?
a. Design of experiments
b. Analysis of variance
c. Pareto analysis
d. Process capability study - ✔✔d. Process capability study
✔✔What is an example of variable data?
a. Welds per unit
b. Number of scratches
c. Depth of a cut
d. Scrapped parts - ✔✔c. Depth of a cut
✔✔Which organizational role supporting Six Sigma initiatives is normally trained as a
black belt and facilitator?
a. Team Member
b. Sponsor
c. Team Leader
d. Coach - ✔✔c. Team Leader
✔✔Which lean concept refers to mistake-proofing a process?
a. Poka-yoke
b. Pull
, c. Queue time
d. Process flow chart - ✔✔a. Poka-yoke
✔✔Given the following Data Set table, which measure of central tendency is equal to 2?
Data: 9 3 2 7 8 2 4 1 5
a. Mean
b. Mode
c. Median
d. Range - ✔✔b. Mode
✔✔What is a work breakdown structure (WBS)?
a. A measurement of a system used to determine the success of a project
b. A detailed listing of activities required to complete a project
c. A cumulative calculation of yield over multiple process steps
d. A secondary metric derived from a primary metric - ✔✔b. A detailed listing of
activities required to complete a project
✔✔Which option refers to a Type I error?
a. Rejecting the null hypothesis when it is true
b. Accepting the null hypothesis when it is true
c. Not rejecting the null hypothesis when it is false
d. Accepting the null hypothesis when it is false - ✔✔a. Rejecting the null hypothesis
when it is true
✔✔Which two design methodologies are commonly used in Design for Six Sigma
(DFSS) projects?
a. DMADV and IDOV
b. DMADV and PDSA
c. DMAIC and PDSA
d. DMAIC and IDOV - ✔✔a. DMADV and IDOV
✔✔Which model describes the factors that make up value in the eyes of the customer?
a. CQFA
b. DMADV
c. SIPOC
d. IDOV - ✔✔a. CQFA
✔✔Given a standard deviation of 2 and a specification limit range from 70 to 130, what
is the ratio of the precision distribution to the precision total?
