The Cloud Seeding Data
Chambers, et al. (1983), page 381, contains the cloud seeding data set. Rainfall in acre-feet for 52 clouds are measured, 50% of which have natural rain (control group) whereas the others are seeded. We need to visually compare whether seeding the clouds lead to increase in rainfall in acre-feet.
data(cloud)
A data frame with 26 observations on the following 2 variables.
ControlRainfall in acre-feet for 26 clouds are measured which had natural rain, that is, control group
SeededRainfall in acre-feet for 26 clouds are measured which had seeded rain
Chambers, J.M., Cleveland, W.S., Kleiner, B., and Tukey, P.A. (1983). Graphical Methods for Data Analysis. Wadsworth and Brooks/Cole.
data(cloud) stem(log(cloud$Seeded),scale=1) stem(log(cloud$Control),scale=1)
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