Usage Note 37930: What is the Specified Sigma option in capability analysis, and how is the default value calculated?
Specified sigma allows the user to enter a specific, known sigma used for computing capability analyses. Sigma is user–specified and is not computed.
When accessing the capability dialog from the Distribution platform, the default value for Specified Sigma on the dialog is the same as the overall standard deviation.
When accessing the capability dialog from the Control Chart platform, the default value for Specified Sigma is the sigma that is associated with the particular chart you are creating. Calculations for this sigma can be found in JMP Usage Note 36576.
Operating System and Release Information
|Product Family||Product||System||SAS Release|
|JMP Software||JMP software||Macintosh|
|Microsoft Windows Server 2003 Enterprise 64-bit Edition|
|Microsoft Windows XP 64-bit Edition|
|Microsoft® Windows® for x64|
|Microsoft Windows 2000 Professional|
|Microsoft Windows Server 2003 Standard Edition|
|Microsoft Windows XP Professional|
|Linux for x64|
|Date Modified:||2009-11-20 12:17:52|
|Date Created:||2009-11-20 10:35:44|