Lean Six Sigma Certification Prep
UPDATED ACTUAL Exam Questions and
CORRECT Answers
The value chain in an organization is the sum total of all the processes which occur in the
business to take inputs and turn them into customer-desired outputs - CORRECT
ANSWER - True
In the expression Y = f(Xn) Y, the output, is the _____ variable and Xn, the inputs, are the _____
variables - CORRECT ANSWER - Dependent, Independent
Why Analysis is used to help identify possible defect causes when which one of the below listed
tools is created? - CORRECT ANSWER - Fishbone Diagram
One of the primary benefits of your team working together to create an X-Y Diagram is that the
data collected from this exercise is accurate and certain - CORRECT ANSWER - False
Inputs that may affect your process to some degree but are not critical, are difficult to quantify
and are random in nature are referred to as _____ - CORRECT ANSWER - Noise
As part of a Visual Factory plan _____ are created and utilized to identify areas in need of
cleaning and organization - CORRECT ANSWER - Kanban Cards
The method category of Root Causes on a Fishbone Diagram is primarily used to generate ideas
as to the possible causes for defects by the _____ - CORRECT ANSWER - Way Work is
Done
Hypothesis Tests determine the probabilities of differences between observed data and the
hypothesis being solely due to chance. This is determined based on the result of the _____ -
CORRECT ANSWER - P-Values
, It is a Type 1 error if we reject the Null Hypothesis when it is actually true - CORRECT
ANSWER - True
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 - CORRECT
ANSWER - Statistical
Having an Alpha of .05 and a Beta of .10 are the most common risk levels when running a
Statistical test - CORRECT ANSWER - True
The Alpha level of a test (level of significance) represents the yardstick against which the P-
Values are measured and the Null Hypothesis is rejected if the P-Value is which of these? -
CORRECT ANSWER - Less than the Alpha level
1-Sample t-test is used when you want to compare the Median of one distribution to a target
value - CORRECT ANSWER - False
1-sample t-test is used to compare an expected population Mean to a target - CORRECT
ANSWER - True
Unequal Variances can be the result of differing types of distributions - CORRECT
ANSWER - True
Which of these graphs demonstrates conditions which would be sufficient to enable OCAP for
the process? - CORRECT ANSWER - Xbar Chart
Control Charts were developed by Dr. Shewhart to track data over time. To detect Special Cause
variation the Control Charts use which of these? - CORRECT ANSWER - Center Line and
Control Limits
Common and _____ Cause Variation are the focus of the Statistical Process Control -
CORRECT ANSWER - Special
UPDATED ACTUAL Exam Questions and
CORRECT Answers
The value chain in an organization is the sum total of all the processes which occur in the
business to take inputs and turn them into customer-desired outputs - CORRECT
ANSWER - True
In the expression Y = f(Xn) Y, the output, is the _____ variable and Xn, the inputs, are the _____
variables - CORRECT ANSWER - Dependent, Independent
Why Analysis is used to help identify possible defect causes when which one of the below listed
tools is created? - CORRECT ANSWER - Fishbone Diagram
One of the primary benefits of your team working together to create an X-Y Diagram is that the
data collected from this exercise is accurate and certain - CORRECT ANSWER - False
Inputs that may affect your process to some degree but are not critical, are difficult to quantify
and are random in nature are referred to as _____ - CORRECT ANSWER - Noise
As part of a Visual Factory plan _____ are created and utilized to identify areas in need of
cleaning and organization - CORRECT ANSWER - Kanban Cards
The method category of Root Causes on a Fishbone Diagram is primarily used to generate ideas
as to the possible causes for defects by the _____ - CORRECT ANSWER - Way Work is
Done
Hypothesis Tests determine the probabilities of differences between observed data and the
hypothesis being solely due to chance. This is determined based on the result of the _____ -
CORRECT ANSWER - P-Values
, It is a Type 1 error if we reject the Null Hypothesis when it is actually true - CORRECT
ANSWER - True
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 - CORRECT
ANSWER - Statistical
Having an Alpha of .05 and a Beta of .10 are the most common risk levels when running a
Statistical test - CORRECT ANSWER - True
The Alpha level of a test (level of significance) represents the yardstick against which the P-
Values are measured and the Null Hypothesis is rejected if the P-Value is which of these? -
CORRECT ANSWER - Less than the Alpha level
1-Sample t-test is used when you want to compare the Median of one distribution to a target
value - CORRECT ANSWER - False
1-sample t-test is used to compare an expected population Mean to a target - CORRECT
ANSWER - True
Unequal Variances can be the result of differing types of distributions - CORRECT
ANSWER - True
Which of these graphs demonstrates conditions which would be sufficient to enable OCAP for
the process? - CORRECT ANSWER - Xbar Chart
Control Charts were developed by Dr. Shewhart to track data over time. To detect Special Cause
variation the Control Charts use which of these? - CORRECT ANSWER - Center Line and
Control Limits
Common and _____ Cause Variation are the focus of the Statistical Process Control -
CORRECT ANSWER - Special
