t**********h
发帖数: 100 | 1 I need to calculate Shewhart Control Charts for sample size larger than 25.
Could anyone tell me how to calculate factor d2 and d3? All I can find is
from the factor table, however it only provides me the value up to sample
size 25.
I am going crazy now!
Can anybody tell me? thank you a millions time. |
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f*****o
发帖数: 113 | 2 现在敲字Shewhart chart总是敲成Sheva chart
cost总成了costa，next总成了nesta
这不，敲这几个字的时候都还在犯错 ft! |
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t******3
发帖数: 431 | 3 how to get the output dataset from this procedure? Like to find the charts
that has outliers ( out of the upperbound), but can't figure out how to
automate that. Currently I have to look at the output chart one by one.
Any suggestion? |
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y**********l
发帖数: 19 | 4 I have a table with d2 upto N=50. I am confused with d3. Do you mean D3, the
constant for lower control limit of R chart or something else? |
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s**********8
发帖数: 25265 | 5 Six Sigma
From Wikipedia, the free encyclopediaJump to: navigation, search
Not to be confused with Sigma 6.
The often-used Six Sigma symbol.Part of a series of articles on
Industry
Manufacturing methods
Batch production • Job production
Continuous production
Improvement methods
LM • TPM • QRM • VDM
TOC • Six Sigma • RCM
Information & communication
ISA-88 • ISA-95 • ERP
SAP • IEC 62264 • B2MML
Process control
PLC • DCS
Six Sigma is... 阅读全帖 |
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a*i
发帖数: 1652 | 6 http://en.wikipedia.org/wiki/Corrective_and_preventive_action
Corrective and preventive action (CAPA, also called corrective action /
preventive action) is a concept within good manufacturing practice (GMP).
CAPA focuses on the systematic investigation of discrepancies (failures and/
or deviations) in an attempt to prevent their recurrence (for corrective
action) or to prevent occurrence (for preventive action). To ensure that
corrective and preventive actions are effective, the systematic
inves... 阅读全帖 |
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