Stu Sens rules

Stu Sens rules - Sensitizing Rules - Are We OOC? The more...

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1 Sensitizing Rules - Are We OOC? The more widely accepted sensitizing rules are shown below. We conclude that the process is out of control (OOC) if one or more of the following occur (Source, Montgomery, SQC 2 nd Ed)
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2 Sensitizing Rules - Are We OOC? The more widely accepted sensitizing rules are shown below. We conclude that the process is out of control (OOC) if one or more of the following occur (Source, Montgomery, SQC 2 nd Ed) 1. Any observation is above the UCL or below the LCL 2. Eight consecutive observations that indicate trend or eight consecutive observations between UCL and CL or eight consecutive observations between CL and LCL 3. Two of three consecutive observations are between 2 sigma and 3 sigma 4. Four of five consecutive observations are between 1 sigma and 3 sigma 5. An unusual or non-random pattern in the plotted data 6. One or more observations are near the UCL or LCL (some examples of violations are shown below, the examples DO NOT include every possibility)
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3 Sensitizing Rule 1 1a. Any observation is above the UCL Or 1b. Any observation is below the LCL
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4 Rule 1 Violation 0 0.2 0.4 0.6 1 3 5 7 9 11 13 15 17 19 21 23 25
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This note was uploaded on 04/11/2011 for the course ECON 3200 taught by Professor Azevedo during the Spring '11 term at UCM.

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Stu Sens rules - Sensitizing Rules - Are We OOC? The more...

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