\name{ex11.18} \alias{ex11.18} \docType{data} \title{data from exercise 11.18} \description{ The \code{ex11.18} data frame has 18 rows and 3 columns. } \format{ This data frame contains the following columns: \describe{ \item{Yield}{ a numeric vector } \item{Speed}{ a numeric vector } \item{Formulation}{ a numeric vector } } } \details{ } \source{ Devore, J. L. (2003) \emph{Probability and Statistics for Engineering and the Sciences (6th ed)}, Duxbury } \examples{ data(ex11.18) } \keyword{datasets}