Goulden, Cyril H.
Methods of statistical analysis
John Wiley & Sons, 1952
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Ott, Lyman
An introduction to statistical methods and data analysis
Duxbury Press, 1993
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Bhattacharyya, Gouri K.
Statistical concepts and methods
John Wiley & Sons, 1977
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Bissell, Derek
Statistical methods for SPC and TQM
Chapman & Hall, 1994
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Hollander, Myles
Nonparametric statistical methods
John Wiley & Sons, 1973
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