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Free IASSC ICGB Practice Questions & Answers 2026 Part4 | Certified Lean Six Sigma Green Belt

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Question #1
All of the following are benefits of control plans except?
A. Coordinates ongoing team and individual involvement
B. Standardizes processes and work procedures
C. Ensures compliance with changes through auditing and corrective actions
D. Measures process performance, stability and capability
E. Plans actions to mitigate possible out-of-control conditions
F. Helps to analyze and eliminate potential x's
View answer
Correct Answer: F
Question #2
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #3
Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.
A. True
B. False
View answer
Correct Answer: A
Question #4
Fractional Factorial designs for an experimental approach are used when ____________ about themultiple metric interaction in a process.
A. uch is known
B. ittle is known
C. e don’t care
D. ata exists
View answer
Correct Answer: B
Question #5
As part of a Visual Factory plan __________ cards are created and utilized to identify areas in need of cleaning and organization.
A. Kanban
B. Kaizen
C. Poke-Yoke
D. WhoSai
View answer
Correct Answer: A
Question #6
As part of a Visual Factory plan __________ cards are created and utilized to identify areas in need of cleaning and organization.
A. Kanban
B. Kaizen
C. Poke-Yoke
D. WhoSai
View answer
Correct Answer: A
Question #7
If a process has Outliers which pair of charts is most preferable if subgroups will exist for the Continuous Data?
A. Individual--Moving Range
B. Xbar-R Charts
C. Xbar-S Charts
D. nP and P Charts
View answer
Correct Answer: B
Question #8
The Lean Principle action in the 5S approach that deals with having those items needed regularly at hand and those items need less regularly stored out of theway is known as ___________.
A. Shining
B. Standardizing
C. Sustaining
D. Sorting
View answer
Correct Answer: D
Question #9
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #10
In the late 1980's William Smith coined the name Six Sigma for a methodology that had its origins at __________________ for quality related work being done there.
A. llied Signal
B. otorola
C. eneral Electric
D. oneywell
View answer
Correct Answer: B
Question #11
Training cost $6,500 and a project required an initial investment of $47,500. If the project yields monthly savings of $3,500 beginning after 4 months, what is the payback period in months, before money costs and taxes?
A. A9
B. B15
C. C19
D. D23
View answer
Correct Answer: C
Question #12
When analyzing a data set we frequently graph one metric as a function of another. If the slope of the Correlation line is -2.5 we would say the two metrics are ___________ correlated?
A. Positively
B. Not
C. Negatively
D. None
View answer
Correct Answer: C
Question #13
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #14
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #15
If a process has Outliers which pair of charts is most preferable if subgroups will exist for the Continuous Data?
A. P and P Charts
B. bar-S Charts
C. ndividual-Moving Range
D. bar-R Charts
View answer
Correct Answer: D
Question #16
__________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.
A. Skewed
B. Bimodal
C. Gaussian
D. Tri-peaked
View answer
Correct Answer: A
Question #17
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #18
Significant variation in process performance is a consequence of several causes that can be classified using which of the terminologies shown. (Note: There are 2correct answers).
A. Common
B. Random
C. Uneducated
D. Special
E. Vital
View answer
Correct Answer: AD
Question #19
__________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.
A. Skewed
B. Bimodal
C. Gaussian
D. Tri-peaked
View answer
Correct Answer: A
Question #20
__________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.
A. Skewed
B. Bimodal
C. Gaussian
D. Tri-peaked
View answer
Correct Answer: A
Question #21
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #22
The generation of a Regression Equation is justified when we _____________. (Note: There are 4 correct answers).
A. Expect the relationship to be Linear between the output and inputs
B. Know that there is a non-linear relationship between output and input(s)
C. Need to understand how to control a process output by controlling the input(s)
D. Experience several process defects and have no other way to fix hem
E. When it is very expensive or too late to measure the output
View answer
Correct Answer: ACDE
Question #23
A two-sample T-test does which of the following?
A. Compares the medians to determine if sample 1 is statistically difference from sample 2
B. Subtracts the mean of sample 1 from sample 2 and compares the difference to zero to determine if they are equal
C. Compares the means to determine if sample 1 is statistically difference from sample 2
D. test of the difference between two population medians
View answer
Correct Answer: C
Question #24
Which statement(s) describe an undesirable situation when implementing SPC?
A. The lower Control Limit for the R chart is equal to zero
B. Attempt to use SPC for tracking transaction times at a warehouse
C. A process is in Statistical Control before implementation of SPC
D. The Control Limits are wider than the customer specification limits
View answer
Correct Answer: D
Question #25
A 1-Sample t-test is used when you want to compare the Median of one distribution to a target value.
A. True
B. False
View answer
Correct Answer: B
Question #26
Which statement(s) are true about the Fitted Line Plot shown here? (Note: There are 2 correct answers).
A. When Reactant increases, the Energy Consumed increases
B. The slope of the equation is a positive 130
C. The predicted output Y is close to -18 when the Reactant level is set to 6
D. Over 85 % of the variation of the Energy Consumed is explained by the Reactant via this Linear Regression
View answer
Correct Answer: CD
Question #27
Which statement(s) are correct for the Regression Analysis shown here? (Note: There are 2 correct answers).
A. This Regression is an example of a Multiple Linear Regression
B. This Regression is an example of Cubic Regression
C. %Cu explains the majority of the process variance in heat flux
D. Thickness explains over 80% of the process variance in heat flux
E. The number of Residuals in this Regression Analysis is 26
View answer
Correct Answer: AD
Question #28
Non-parametric testing is done when which of these are applicable? (Note: There are 3 correct answers).
A. AWhen the traditional t tests don't produce the results we need
B. BA Hypothesis Test for the Median of the population is in question
C. CIt does not require data to come from Normally Distributed populations
D. DThey look at the Median rather than the Mean of populations
E. EWhen there are no parameters to measure in the process
View answer
Correct Answer: BCD
Question #29
While management of a company must set the stage for all improvement efforts, which of these 5S’s is primarily driven by management?
A. Straighten
B. Sort
C. Shine
D. Sustain
View answer
Correct Answer: D
Question #30
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #31
Which statement(s) are true about the Fitted Line Plot shown here? (Note: There are 2 correct answers).
A. When Reactant increases, the Energy Consumed increases
B. The slope of the equation is a positive 130
C. The predicted output Y is close to -18 when the Reactant level is set to 6
D. Over 85 % of the variation of the Energy Consumed is explained by the Reactant via this Linear Regression
View answer
Correct Answer: CD
Question #32
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #33
Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.
A. True
B. False
View answer
Correct Answer: A
Question #34
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #35
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #36
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #37
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #38
__________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.
A. Skewed
B. Bimodal
C. Gaussian
D. Tri-peaked
View answer
Correct Answer: A
Question #39
Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.
A. True
B. False
View answer
Correct Answer: A
Question #40
Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.
A. True
B. False
View answer
Correct Answer: A
Question #41
After reviewing the Capability Analysis shown here select the statement(s) that are untrue.
A. The process is properly assumed to be a Normal process
B. The Mean of the process moving range is 1
C. The process is out of Control
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: A
Question #42
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #43
While management of a company must set the stage for all improvement efforts, which of these 5S's is primarily driven by management?
A. Straighten
B. Sort
C. Shine
D. Sustain
View answer
Correct Answer: D
Question #44
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #45
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #46
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #47
Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.
A. True
B. False
View answer
Correct Answer: A
Question #48
Fractional Factorial designs for an experimental approach are used when ____________ about the multiple metric interaction in a process.
A. Much is known
B. Little is known
C. We don't care
D. Data exists
View answer
Correct Answer: B
Question #49
Fractional Factorial designs for an experimental approach are used when ____________ about the multiple metric interaction in a process.
A. Much is known
B. Little is known
C. We don't care
D. Data exists
View answer
Correct Answer: B
Question #50
Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.
A. True
B. False
View answer
Correct Answer: A

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