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Experiment for chick weights and feed type.
data("chick.wts")
A data frame with 71 observations on the following 2 variables.
weight
a numeric vector
feed
a factor with levels casein horsebean linseed meatmeal soybean sunflower
casein
horsebean
linseed
meatmeal
soybean
sunflower
# NOT RUN { data(chick.wts) boxplot(chick.wts$weight ~ chick.wts$feed) # }
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