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Level I

Control Charts Warning Test

Created: Jul 17, 2022 06:03 PM  |  Last Modified: Jun 11, 2023 4:25 AM (1150 views)

How does JMP decide which point to mark as OOC? For example, in below image why is it that only the two points towards the right marked as red? It fails for Test 7 (15 points in a row in Zone C or beyond). 

StarIconValues7_0-1658095296412.pnga

 

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txnelson
Super User txnelson
Super User
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Re: Control Charts Warning Test

Jul 17, 2022 08:30 PM (1139 views)  |  Posted in reply to message from StarIconValues7 07-17-2022

If you count the points that start appearing in zone C or above, the 15th data point is marked in red, as is the 16th data point.  However, after that point, the next point is in zone B, thus resetting the counter for rule 7.

Jim

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txnelson
Super User txnelson
Super User
Solution

Re: Control Charts Warning Test

Jul 17, 2022 08:30 PM (1140 views)  |  Posted in reply to message from StarIconValues7 07-17-2022

If you count the points that start appearing in zone C or above, the 15th data point is marked in red, as is the 16th data point.  However, after that point, the next point is in zone B, thus resetting the counter for rule 7.

Jim
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