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\name{ex08.54}\alias{ex08.54}\docType{data}\title{data from exercise 8.54}\description{Amount of organic matter in soil samples.}\usage{data(ex08.54)}\format{A data frame with 30 observations on the following variable.\describe{\item{percorg}{a numeric vector of percentages of organic matter}}}%\details{}\source{Devore, J. L. (2003) \emph{Probability and Statistics for Engineering and the Sciences (6th ed)}, Duxbury}\references{``Engineering Proeprties of Soil'', \emph{Soil Science}, 1998: 93--102.}\examples{data(ex08.54)}\keyword{datasets}