Miles per gallon for standard 4-wheel drive trucks manufactured by Chevrolet, Dodge and Ford
Data for Example 10.2
Trucks
A data frame/tibble with 15 observations on two variables
miles per gallon
a factor with levels chevy, dodge, and ford
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
boxplot(mpg ~ truck, data = Trucks, horizontal = TRUE, las = 1) summary(aov(mpg ~ truck, data = Trucks))
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