00000nam 2200000zi 4500 9.874807 CaOODSP 20241203113650 m o d f cr bn||||||||| 190612e199002##onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/90-68E-PDF El-Shaarawi, A. H., author. Replacement of censored observations by arbitrary values : an evaluation / by A.H. El-Shaarawi and S.R. Esterby. Burlington, Ontario : Rivers Research Branch, National Water Research Institute, Canada Centre for Inland Waters, February 1990. 1 online resource (18 pages, 9 unnumbered pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; no. 90-68 Digitized edition from print [produced by Environment and Climate Change Canada]. "RRB 90-24." Includes bibliographical references (page 18). "In the analysis of water quality data, samples with concentrations below the analytical detection limit are sometimes replaced by arbitrary values. The performance of this replacement method has previously been examined in Monte Carlo studies by severalauthors. In this paper, the expectation of the sample mean and variance, under replacement by a value between 0 and the detection limit, are given for normally and lognormally distributed data"--Abstract. Includes management perspective and abstract in French. gccst Water quality Esterby, S. R., author. Canada. Environment Canada. National Water Research Institute (Canada). Rivers Research Branch. Canada Centre for Inland Waters. NWRI contribution ; no. 90-68. (CaOODSP)9.844121 PDF 1.74 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-90-68-eng.pdf