SIX0103: Quality Tools Flashcards
Cause and Effect diagrams were developed by whom, who first applied them in shipyards in Japan before and during World War II?
Kaoru Ishikawa
Who adopted the Cause and Effect diagram technique as part of Total Quality Management in Japan after World War II?
Dr W Edwards Deming
What makes up the backbone of the fishbone diagram?
Effect (the Problem)
The ribs of the fishbone diagram represent what?
the Major Categories of Causes of the particular problem
What are the Common Cause Categories of the fishbone diagram?
the 6 M’s
Man
Method
Machine
Measurement
Mother Nature
Material
Creating a cause and effect diagram is a multi-step process. We begin with what?
a clear definition of the problem or effect.
In the fishbone diagram, what comes under each of the major causes?
The key factors that come into play in our process
During the root cause analysis process it is important to resist what?
the urge to start fixing things too soon. It’s important to follow the process and get down to the true issue before we start fixing anything.
How are quality tools used during a Six Sigma project? Choose multiple correct answers:
a.) Some quality tools are used to measure performance
b.) Run Charts are used during the Measure stage to collect data
c.) Data display tools like run charts are used during the Control stage
d.) Root cause analysis and fishbone diagrams are used during the Analyze stage
e.) Value stream maps are used to control the performance of an improved process
a.) Some quality tools are used to measure performance
c.) Data display tools like run charts are used during the Control stage
d.) Root cause analysis and fishbone diagrams are used during the Analyze stage
There are certain types of studies for which a Pareto chart will be the right tool. Which situations apply?
a.) Determining which data entry clerks have the highest error rates
b.) Finding the shift during the week that logs the most downtime
c.) Finding whether there has been a significant change in the level of customer satisfaction
d.) Determining the degree to which a device is out of alignment and needs to be recalibrated
a.) Determining which data entry clerks have the highest error rates
b.) Finding the shift during the week that logs the most downtime
Sequence the steps for creating and using a Pareto chart
a.) Plotting the cumulative frequency of defects
b.) Building the chart
c.) Calculating cumulative percentages
d.) Listing the causes in descending order
e.) Identifying the vital few causes of error
d.) Listing the causes in descending order
c.) Calculating cumulative percentages
b.) Building the chart
a.) Plotting the cumulative frequency of defects
e.) Identifying the vital few causes of error
Which correlation pattern is described as scattered data points that don’t form any particular line?
No correlation
Which correlation pattern is described as widely scattered data points above and below an upward trending best-fit line?
Low correlation
Which correlation pattern is described as a line descending from left to right with variables moving in opposite directions?
High negative
Which correlation pattern is described as a significant change in the dependent variable taking place at a certain value of the independent variable?
Non-linear
