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Implications of Statistical Control
Implications of Statistical Control
Click <a href="https://www.euromotor.org/pluginfile.php/4806/mod_resource/content/0/html/votp3.html" >votp3.html</a> link to view the file.
Implications of Statistical Control
◄ Uncontrolled Variation
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Beadboard
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Introduction
Available Tools
The Specifications Approach
The Test / Rework / Scrap Cycle
100% Inspection Is Not Enough
Specifications as Goalposts
Results Measures vs. Process Measures
Moving the Goalposts
Variation in a Process
Uncontrolled Variation
Achieving Control
Establishing Control
The Empirical Rule
A More Relaxed Rule for the Real World
The Use of Subgrouped Data
The Use of Subgrouped Data (2)
The Use of Subgrouped Data (3)
Aim & Precision
Control Limits & Natural Process Limits
A Note about Variable and Attribute Data
Defining the Problem
Defining the Problem (2)
Defining the Problem (3)
Attempt 1
The Results of Attempt 1
Attempt 2
Attempt 3
Attempts 4 & 5
Attempt 6
A Different Approach
A Different Approach (2)
Summary of Results
Points to Note
Elbow Room
Elbow Room (2)
Distance to Nearest Specification Limit
Capability Indices
Capability is not the end of the story
The Step Loss Function
The Taguchi Loss Function
The Taguchi Loss Function (2)
On Target With Minimum Variation
Adjusting the Process Aim
The Western Electric Zone Tests
Achieving Control ►