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Certified Lean Six Sigma Black Belt (CLSSBB) (CLSSBB) - GAQM Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
300 Total Questions
1
Question
The validity of the decision made with Hypothesis Testing is dependent upon all of these except ___________________.
Options
A Sample size
B Beta risk
C Range of data
D Alpha risk
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2
Question
A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasing manager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to
$3,800 in order to stay within budget. Using a sample of 38 first article components, a Mean of the
new product upgrade price of $3,680, and a Standard Deviation of $120 was estimated. In order to
increase the Long Term Z value to 5, what is the maximum long term variation in pricing the Belt can accept for his upgraded critical raw material component?
Options
A $48
B $6
C $24
D $12
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3
Question
The Mann-Whitney test is a powerful test and is unique to situations from which of the choices listed? (Note: There are 2 correct answers).
Select 2
Options
A More widely applicable than the traditional “t-test”
B Testing the identity of two populations
C Less powerful than the traditional “t-test”
D Focuses on equality of the Median of the two populations
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4
Question
A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasing manager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to
$4,200 in order to stay within budget. Using a sample of 35 first article components, a Mean of the
new product upgrade price of $4,060, and a Standard Deviation of $98 was estimated. The
Alternative Hypothesis in the above example is?
Options
A The Mean is less than $4,200.
B The Standard Deviation is equal to $300.
C The Mean is greater than $ 4,200.
D The Mean is equal to $4,060.
E The Mean is less than $4,320.
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5
Question
Which statement(s) are most correct for the Regression Analysis shown here?

Exhibit
Options
A This Multiple Linear Regression has four statistically significant independent variables
B The Regression explains 50.8% of the process variation
C This Simple Linear Regression explains 98+% of the process variation
D The air-fuel ratio explains most of the TurbineOutput variation
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