Lean Six Sigma - Green Belt Questions With Solutions 100% Correct
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Course
LSSGB
Institution
LSSGB
Lean Six Sigma - Green Belt Questions With
Solutions 100% Correct
In Multi-Vari analysis, a graph is created that displays the possible sources of variation affecting
process output. True
The mean output of a process is the major factor in controlling that process and ensuring that it
meets...
Lean Six Sigma - Green Belt Questions With
Solutions 100% Correct
In Multi-Vari analysis, a graph is created that displays the possible sources of variation affecting
process output. True
The mean output of a process is the major factor in controlling that process and ensuring that it
meets process objectives. False
Both mean and standard deviation, a measure of variation, are important. Some would argue that
variation is more important than mean.
There is only one source of variation. False
There are two sources: common and special
The normal or expected cause of variation is called Common Cause. True
Special cause variation is always present. No process can avoid it. False
, Lean Six Sigma - Green Belt Questions With
Solutions 100% Correct
Common cause is always present.
Barring any accidents, the length of time it takes to commute to work is subject to common cause
variation. True
It is not possible to eliminate all common cause variation in most processes. True
There is some variation in even the most carefully designed and controlled processes.
Special cause variation is of most concern in Six-Sigma. It is unexpected and can disrupt process
output. True
Special cause variation represents the category of variation that effective Six Sigma monitoring
systems are expected to detect. True
The length of time it would take to be seen at a health care clinic, that has otherwise not expected
emergencies during the day, would be subject to special cause variation. False
, Lean Six Sigma - Green Belt Questions With
Solutions 100% Correct
Normal variation is considered common cause variation.
As long as a process is in-control and performing as expected there is not much that can be done
to eliminate common cause variation short of redesigning the entire process. True
Several people working at a call center have called to report that they are sick with the flu and
have been replaced by temporary help. Call waiting time has increased significantly. This would
be considered special cause variation since it is not inherent in the process and is not predictable.
True
The length of the vertical lines in a Multi-Vari chart represents the range of a specific variable
over a specific period such as one week. True
The longer is the vertical line in a Multi-Vari chart the lower is the "position" variation.
False
Multi-Vari charts also uncover why special cause variation occurs. False
They only help expose the presence of special cause variation they cannot determine its sources.
, Lean Six Sigma - Green Belt Questions With
Solutions 100% Correct
Multi-Vari charts also display output means. True
In a Multi-Vari chart, the range of variation is expressed along the "X" or horizontal axis.
False
The data within a vertical bar of a Multi-Vari chart is referred to as "within variation" or
"position variation." True
Multi-Vari Charts display the root cause of a problem False
This is not the purpose of a multi-vari chart
Four identical machines in a manufacturing process are operated over three shifts. A multi vari
chart would be appropriate to study the variability of each machine and then to determine which
machine contributes most of the output variation True
A multi-vari analysis is visual and uses no statistics to compare output variation. True
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