SSGI Six Sigma Black Belt, Chp 10
Quiz
In Multi-Vari analysis, a graph is created that displays the possible sources of variation
affecting process output. - answerTrue
The mean output of a process is the major factor in controlling that process and
ensuring that it meets process objectives. - answerFalse
There is only one source of variation. - answerFalse
The normal or expected cause of variation is called Common Cause. - answerTrue
Special cause variation is always present. No process can avoid it. - answerFalse
Barring any accidents, the length of time it takes to commute to work is subject to
common cause variation. - answerTrue
It is not possible to eliminate all common cause variation in most processes. -
answerTrue
Special cause variation is of most concern in Six-Sigma. It is unexpected and can
disrupt process output. - answerTrue
Special cause variation represents the category of variation that effective Six Sigma
monitoring systems are expected to detect. - answerTrue
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. -
answerFalse
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. - answerTrue
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flu and have been replaced by temporary help.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. - answerTrue
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. - answerTrue
Quiz
In Multi-Vari analysis, a graph is created that displays the possible sources of variation
affecting process output. - answerTrue
The mean output of a process is the major factor in controlling that process and
ensuring that it meets process objectives. - answerFalse
There is only one source of variation. - answerFalse
The normal or expected cause of variation is called Common Cause. - answerTrue
Special cause variation is always present. No process can avoid it. - answerFalse
Barring any accidents, the length of time it takes to commute to work is subject to
common cause variation. - answerTrue
It is not possible to eliminate all common cause variation in most processes. -
answerTrue
Special cause variation is of most concern in Six-Sigma. It is unexpected and can
disrupt process output. - answerTrue
Special cause variation represents the category of variation that effective Six Sigma
monitoring systems are expected to detect. - answerTrue
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. -
answerFalse
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. - answerTrue
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. - answerTrue
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. - answerTrue
