trtools: Miscellaneous Tools for Teaching Statistics

#' Survey of radon concentration in homes in Blue Ridge, VA.
#'
#' Data from a survey of homes in Blue Ridge, VA, from a population of 13,895 homes. The sampling design was simple random sampling. The radon concentration was measured in the ground floor of each home. It was also observed whether or not the home had a basement with concrete walls.
#'
#' @format A data frame with 140 observations and two variables:
#' \describe{
#'    \item{radon}{ground floor radon concentration in pCi/L}
#'    \item{basement}{does the house have a basement?}
#' }
#'
#' @source Gregoire, T. G. & Valentine, H. T. (2007). \emph{Sampling strategies for natural resources and the environment}. Boca Raton, FL: Chapman & Hall/CRC.
"radonbase"