The Distribution of student's t-statistic for small samples from lognormal exposure distributions
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| 100 | 1 | $0MAPA20080097868$aEvans, John S. | |
| 245 | 1 | 4 | $aThe Distribution of student's t-statistic for small samples from lognormal exposure distributions$cJohn S. Evans and Neil C. Hawkins |
| 520 | $aIn industrial environments it is common for pollutant concentrations to be approximately lognormal. Unfortunately, when based on small samples from lognormal distributions, the ordinary student's t-statistic has some undesirable characteristics which are not recognized widely by practicing industrial hygienists. In this paper, the authors demonstrate the difficulties in using the ordinary student's t-statistic to evaluate the average exposure, explore the properties of alternative test statistics, and make some general observations on the implications of these findings | ||
| 650 | 1 | 1 | $0MAPA20080585679$aHigiene industrial |
| 650 | 1 | 1 | $0MAPA20080605278$aContaminantes químicos |
| 650 | 1 | 1 | $0MAPA20080570484$aRiesgo laboral |
| 650 | 1 | 1 | $0MAPA20080539948$aTests |
| 650 | 1 | 1 | $0MAPA20080551797$aMuestreos |
| 650 | 1 | 1 | $0MAPA20080601508$aEstudios estadísticos |
| 650 | 1 | 1 | $0MAPA20080592042$aModelos matemáticos |
| 700 | 1 | $0MAPA20080165574$aHawkins, Neil C. | |
| 740 | 0 | $aAmerican Industrial Hygiene Association journal | |
| 773 | 0 | $tAmerican Industrial Hygiene Association journal$dAkron, Ohio$gVol. 49, nº 10, October 1988 ; p. 512-515 |