p Chart in Excel
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p Chart in Excel |
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Jay Arthur
We help people think! Copyright © 2008
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The purpose of
a p chart is to evaluate process stability when counting the fraction
defective.
The p chart is used when the sample size varies: the total number of circuit boards, meals, or bills delivered varies from one sampling period to the next. Here is a sample of a p chart created using the QI Macros SPC Software for Excel.The stair step or skyline control limits are the result of the varying sample sizes.
p chart data looks like this:
p chart format options in the QI Macros p charts are just one of the tools included in the QI Macros for Excel SPC Software for Excel.
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