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References:
• Grant, E. L.,
R. S. Leavenworth, 1996, "Statistical
Quality Control", 7.th ed., McGraw-Hill, New York, NY.
• Wadsworth, Harrison
M., Kenneth S. Stephens, A. Blanton
Godfrey, 1986, "Modern Methods for
Quality Control and Improvement", John Wiley & Sons, New York, NY.
• Guttman, Irwin,
S. S. Wilks, and J. Stuart
Hunter, 1982, "Introductory Engineering
Statistics", 3.rd ed., John Wiley & Sons, Inc., New York, NY.
• Shewhart X-bar and R and S
Control Charts, Eng.ing Statistics Handbook, NIST/SEMATECH.
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