The Basics
The application of statistical techniques to control a process is....
SPC
The Pareto Principle
UCL and LCL stand for...
Upper and lower control limits
Mean of 4, 2, 5, 5, 6
4.4
What is CA? When do you implement it?
Corrective Action - right away
In statistical control
Pareto diagrams are used to...
Focus attention in priority order
Where are UCL and LCL on an X-Bar and R chart?
They are marked at plus and minus 3 standard deviations from the mean (X-Bar)
Median of 4, 2, 5, 5, 6
5
What is PA? When do you implement it?
Preventative Action - Long term prevention - may take time to develop/implement.
What does a fishbone diagram cover?
The six M's - it is a good tool to gather all contributing manufacturing processes when assessing a manufacturing issue.
What is the relationship of mean, median, and mode for a normal probability distribution.
They are all the same.
Sigma is...
Standard deviation
Mode of 4, 2, 5, 5, 6
5
Why is follow up critical for CAPAs?
You need to ensure the fix is working as designed - luck and temporary operator awareness can hide a bad preventative action.
One dot on the S-bar chart is..
the standard deviation of the subgroup
What is a flow chart?
a schematic diagram that shows the flow of the product or service through various activities.
What is a good Capability Index value
1.33 or higher
Sample Standard Deviation of 4, 2, 5, 5, 6
1.52
What is limitation of a 5-Why?
It's a linear process and can limit potential solutions.
One dot on the R chart is...
The sample range for one subgroup
What type of chart compares two variables (generic chart type)
Scatterplot
•%R & R < 10%: Acceptable and indicates a very good gauge
•10% < %R & R < 30%: Conditionally accepted (under specific conditions such as importance of the application, cost of the gauge, etc.)
•30% < %R & R: Unacceptable (system needs replacing or improving)
If I have one brown egg, one white egg, and one ostrich egg and I pick one randomly, what is the probability it will be the ostrich egg?
33%
What are the two Causes of an effect when using Apollo?
An Action Cause and a Condition Cause