Silver {NADA}

Silver-standard concentrations

Description

Silver concentrations in a standard solution sent to 56 laboratories as part of a quality assurance program.

Objective is to estimate summary statistics for the standard solution. The median or mean might be considered the most likel estimate of the concentration.

Contains twelve detection limits, the largest at 25 ug/L. Used in Chapter 6 of the NADA book.

Usage

data(Silver)

Source

Helsel and Cohn, 1988, Water Resources Research 24, pp. 1997-2004.

References

Helsel, Dennis R. (2005). Nondectects and Data Analysis; Statistics for censored environmental data. John Wiley and Sons, USA, NJ.