Zinc concentrations of the CuZn data set; concentrations in the Alluvial Fan zone have been altered so that there are more nondetects. This produces a greater signal, even with more nondetects.
Objective is to determine if zinc concentrations differ between the two zones. Zinc has two detection limits, at 3 and 10 ug/L. Used in Chapter 9 of the NADA book.
Altered from the data of Millard and Deverel, 1988, Water Resources Research 24, pp. 2087-2098.
Helsel, Dennis R. (2005). Nondectects and Data Analysis; Statistics for censored environmental data. John Wiley and Sons, USA, NJ.
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