The data used in the STAT0002 notes to introduce the idea of transforming data to approximate symmetry. This dataset contains the amounts of rainfall, in acre-feet, produced by 52 clouds. Half of the clouds were chosen at random to be seeded with silver nitrate.
cloudsA data frame with 26 observations on the following 2 variables.
unseeded: the rainfall amount for unseeded clouds.
seeded: the rainfall amount for unseeded clouds.
Simpson, J., Olsen, A. , and Eden. J.C. (1975). A Bayesian analysis of a multiplicative treatment effect in weather modification. Technometrics, 17, 161-166.