Chapter 19 Flashcards
A collection of strategies, techniques, and actions taken by an organization to ensure it is producing a quality product of providing quality service.
Statistical Process Control (SPC)
Program named after 3 points +/- the standard deviation that aims to reduce cost of defects and errors and improve process and customer satisfaction
Six Sigma
What steps does six sigma take to achieve it’s goal
- Identify and define problem
- Collect and analyze data
- make a process improvements
- Implement procedure
Variation that is random in nature. Cannot be completely eliminated
Chance variation
Variation that is not random, can be eliminated or reduced
assignable variation
Two reasons we should be concerned with variation
- It will change the shape, dispersion, and central location of teh distribution of the product characteristic being measured
- Assignable variation is usually correctable.
Techniques associated with Six Sigma
- Histograms
- ANOVA
- Chi-squared
- regression
- correlation
A Diagnostic technique for tallying the number and type of defects that happen within a product or service.
Pareto analysis
What are the steps to develope a pareto chart
- Tally the defects
- Rank defects in terms of frequency
- produce a bar chart corresponding to frequency
A cause and effect chart that illustrates the relationship between an effect and possible causes
Fishbone diagram
Charts that show when assignable variation or changes have entered the process.
Control Charts
A control chart that portrays measurements
Variable control chart
A control chart that marks a product or service acceptable or unacceptable
An attribute control chart
What is the minimum number of samples for a control chart
25
A chart that shows and monitors the variation in sample ranges
Range chart