# Certified Lean Six Sigma Green Belt (CLSSGB) v4.0

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Exam contains 205 questions

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 1.78.
• D. This Capability Analysis used subgroups.
• E. Majority of the dimensional values are outside of the tolerance than within.

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

A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.

• A. True
• B. False

__________ 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

Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.

• A. True
• B. False

To draw inferences about a sample population being studied by modeling patterns of data in a way that accounts for randomness and uncertainty in the observations is known as
____________________.

• A. Influential Analysis
• B. Inferential Statistics
• C. Physical Modeling
• D. Sequential Inference

For a Normal Distribution the Mean, Median and Mode are the same data point.

• A. True
• B. False

When two Inputs have an impact on the Output together yet seem to have no or little impact on their own this is called a/an ________________.

• A. Interaction
• B. Oddity
• C. Coincidence
• D. Impossibility

Hypothesis Testing can save time and help avoid high costs of experimental efforts by using existing data.

• A. True
• B. False

It is a Type II error if we decide to reject the Null Hypothesis when it is actually true.

• A. True
• B. False

A Belt experienced an Alpha of .05 and a Beta of .10 and knew these are the most common risk levels when running a Statistical test.

• A. True
• B. False

Inferential Statistics is largely about Significance. There are both Practical and
_______________ Significance to consider during an analysis of data in a Lean Six Sigma project.

• A. Problematic
• B. Impractical
• C. Usable
• D. Statistical

The Central Limit Theorem helps us understand the ___________ we are taking and is the basis for using sampling to estimate population parameters.

• A. Analysis
• B. Kurtosis
• C. Risk
• D. Route

Hypothesis Tests determine the probabilities of differences between observed data and the hypothesis being solely due to _________ based on the result of the P-values.

• A. Human error
• B. Measurement error
• C. Shift differences
• D. Chance

The Alpha level of a test (level of significance) represents the yardstick against which P- values are measured and the Null Hypothesis is rejected if the P-value is which of these?

• A. Less than the Alpha level.
• B. Greater than the Alpha level.
• C. Greater than the Beta and Alpha level.
• D. Less than one minus Alpha.
• E. Less than the power of one minus Beta.