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Page 1: images.library.wisc.eduimages.library.wisc.edu/EcoNatRes/EFacs/Groundwater/...Control Charts Using Midranges and Industrial Quality Control. pp. 30—34. and R.D. Duval June 1985 Statistical
Page 2: images.library.wisc.eduimages.library.wisc.edu/EcoNatRes/EFacs/Groundwater/...Control Charts Using Midranges and Industrial Quality Control. pp. 30—34. and R.D. Duval June 1985 Statistical
Page 3: images.library.wisc.eduimages.library.wisc.edu/EcoNatRes/EFacs/Groundwater/...Control Charts Using Midranges and Industrial Quality Control. pp. 30—34. and R.D. Duval June 1985 Statistical