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IASSC Certified Lean Six Sigma Black Belt (ICBB) - IASSC Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
300 Total Questions
1
Question
When a Belt properly analyzes the results of an experiment he must examine the Residuals in expectation of finding all of the following except _________.
Options
A All Residuals within 2 Standard Deviations of the Mean
B Some Residuals higher than others
C Residuals will represent a Linear Regression
D Some Residuals lower than others
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2
Question
A ___________ is used primarily to track the stability of the average value of a metric of interest.
Options
A C Chart
B I-MR Chart
C Xbar-R Chart
D NP Chart
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3
Question
Which Element of Waste best describes "the unnecessary movement of materials and goods"?
Options
A Overprocessing
B Conveyance
C Inventory
D Motion
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4
Question
A natural logarithmic base is not required for which of these distributions for probability calculations?
Options
A Poisson
B Binomial
C Normal
D Weibull
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5
Question
Which statement(s) are correct about the Pareto Chart shown here for the DOE analysis? (Note: There are 2 correct answers).

Exhibit
Select 2
Options
A The effects to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to
B The factors to keep in the mathematical model with a 5% alpha risk are BE, AB, A and AD
C The factors to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 2.06 0.05
D It is unknown from this graph how many factors were in the Experimental Design
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