\name{ex04.87} \alias{ex04.87} \title{data from exercise 4.87} \description{ The \code{ex04.87} data frame has 16 rows and 1 columns. } \format{ This data frame contains the following columns: \describe{ \item{life.hr.}{ a numeric vector } } } \details{ } \source{ Devore, J. L. (2000) \emph{Probability and Statistics for Engineering and the Sciences (5th ed)}, Duxbury } \examples{ data(ex04.87) } \keyword{datasets}