\name{ex01.15} \alias{ex01.15} \docType{data} \title{data from exercise 1.15} \description{ Scores for different brands of peanut butter according to type. } \usage{data(ex01.15)} \format{ A data frame with 37 observations on the following 2 variables. \describe{ \item{Score}{a numeric vector} \item{Type}{a factor with levels \code{Creamy} \code{Crunchy}} } } %\details{} \source{ Devore, J. L. (2003) \emph{Probability and Statistics for Engineering and the Sciences (6th ed)}, Duxbury } \references{ \emph{Consumer Reports}, Sept. 1990. } \examples{ data(ex01.15) str(ex01.15) } \keyword{datasets}