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Total Quality Management [5] March 6, 2009

Posted by desrinda in TQM.
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tqm5

Control Charts for Variables Data
=> for variables that have continuous dimensions (weight, speed, length, strength, etc.)

Mean (x)-charts are used to control the central tendency of the process.
Range (R)-charts are used to control the dispersion of the process.
These two charts must be used together.

tqm5-1

tqm5-2

P-Chart:

tqm5-32

tqm5-4

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