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The applets in this section allow you to see how the common Xbar control chart is constructed with known variance. The Xbar chart is constructed by collecting a sample of size n at different times t. The process is considered to be out of control if the sample mean of the current sample falls above or below the control limits. The user has the options to change each parameter individually and all at once.

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Date Issued 2000
Resource Type
Email Address
Date Of Record Creation 2005-04-07 17:57:49
Date Of Record Release 2004-07-27 21:47:12
Date Last Modified 2009-10-27 14:07:44
Material Type
Typical Learning Time Various
Author Name S. Dorai-Raj, C. Anderson-Cook, T. Robinson
Author Organization Virginia Tech Department of Statistics
Technical Requirements Java-capable browser
Source Code Available
Intended User Role
Application Area
Cost involved with use
Math Level

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