Welcome!The Topic For Today Is…

Variation Control Charts

Process Tools

Potpourri More SPC

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Final Jeopardy: 3000 pts

Answer: This type of variation is sporadic and not

predictable Question What are special causes of variation?

Answer: Prevention and detection Question What are the two modes of operation?

Answer: The red beads represent this type of

variation Question What are common causes of variation?

Answer: The tool is the only thing that can

separate common and special causes of variation

Question What are control charts?

Answer: You must trace variation back to this to

reduce variation Question What is the source of variation?

Answer: The largest value you would expect due

to common causes of variation on a control chart

Question What is the upper control limit?

Answer: The minimum number of points you need

to start a control chart (at least according to Bill)

Question What is five or six?

Answer: You use this type of control chart when

you have frequent data and a way of rationally subgrouping the data

Question What is the Xbar-R (or Xbar-s) control

chart?

Answer: You use this type of control chart with

yes/no data Question What is the p control chart

Answer: This type of control chart is used to

monitor laboratory test methods Question What is the X-mR (individuals control

chart)

Answer: This process tools separates the vital few

or the trivial many Question What is a Pareto diagram?

Answer: This tool was developed by Kaoru

Ishikawa Question What is the cause and effect (or fishbone)

diagram?

Answer: This tool shows if you have redundant

steps in the process Question What is a process flow diagram?

Answer: This tools tells you if there is a linear

relationship between two variables Question What is a scatter diagram?

Answer: A histogram tells you these four things. Question What are the mode, the range of

variation, the shape of the variation and the relationship to specifications?

Answer: This measure tells you how well your

process meets specifications Question What is process capability?

Answer: These two criteria must be met for data

to be considered counting-type attribute data

Question What are there is a large opportunity for

defects to occur, but the actual number that occur is small

Answer: These six major categories are often used

on fishbone diagrams. Question What are machines, methods,

measurement, material, people, and environment?

Answer: This tools has these three components: a

written statement, a test, and a decision. Question What is an operational definition?

Answer: The absoluteness correctness of a

measurement. Question What is accuracy?

Answer: Using data to make processes do what

we want them to. Question What is statistical process control?

Answer: The minimum of Cpu and Cpl Question What is Cpk?

Answer: When x increases, y decreases Question What is negative correlation on a scatter

diagram?

Answer: You have this type of data when the

range between values becomes too large or you have too few possible values on a range chart.

Question What is chunky data?

Answer: The quality guru who helped Japan

following WWII Question Who is Dr. W. Edwards Deming?

Answer: The calculated value of the standard

deviation is used to determine this measure of process capability

Question … What is Ppk?

You may bet as many points as you have or up to 1000 points if you have less than 1000 points

You may bet as many points as you have or up to 1000 points if you have less than 1000 points