Sample size formulae for estimating the true arithmetic or geometric mean of lognormal exposure distributions
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| 003 | MAP | ||
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| 100 | 1 | $0MAPA20080045432$aHewett, Paul | |
| 245 | 1 | 0 | $aSample size formulae for estimating the true arithmetic or geometric mean of lognormal exposure distributions$cPaul Hewett |
| 520 | $aThe purpose of this article is to present simple formulae for calculating the appoximate sample size required to estimate either the true arithmetic or true geometric mean of a lognormal distribution to within a specified accuracy with a specified level of confidence. These formulae should be of interest to the industrial hygienist involved in prospective or cross-sectional studies, or establishing exposure databases to be used to assess long-term changes in worker health status | ||
| 650 | 1 | 1 | $0MAPA20080585679$aHigiene industrial |
| 650 | 1 | 1 | $0MAPA20080560850$aToxicología |
| 650 | 1 | 1 | $0MAPA20080619480$aEnfermedades profesionales |
| 650 | 1 | 1 | $0MAPA20080565541$aEpidemiología |
| 650 | 1 | 1 | $0MAPA20080592042$aModelos matemáticos |
| 650 | 1 | 1 | $0MAPA20080554286$aEstimación |
| 740 | 0 | $aAmerican Industrial Hygiene Association journal | |
| 773 | 0 | $tAmerican Industrial Hygiene Association journal$dAkron, Ohio$gVol. 56, nº 3, March 1995 ; p. 219-225 |