QC Study Problems (Revised
02/24/2007 06:43 PM)
Here are some solved problems in the text that relate to the quality control
techniques that we've presented in class. As mentioned, the best way to
learn these is to actually DO the work (i.e., put pencil to paper)--don't merely
review the problem in the text. It will pay off come exam time (believe
me, I'm speaking from experience!).
||Explained example of "silicon wafer
production" beginning on p. 695 of text; I would also work thru the
LaVentana case data; you can also work thru the
Dean Door case data here.
||Explained example of "machine failures"
beginning on p. 730 of text; I would also work thru the
Disciplinary Citation case data (answers can be
found here on the c-chart sheet tab).
||Explained example of "zip code reader"
beginning on p. 722 of text (answers can be found here on the p-chart
sheet tab); I would also work thru the Murphy
Trucking case data.
|Process capability index (Cp)
||Explained example of process capability index
using "silicon wafer production" data beginning on p. 710 of text; Prob
#16 p. 754 (answer in back--look for Cp only. Note that book says Cp
of 1.098 is "adequate" which I'd dispute. Recall our rule that we want
Cp > 1.3); a process capability example using the Dean Door data can be
found here under the process capability tab.