Wool | R Documentation |
Data for Exercise 7.42
Wool
A data frame/tibble with 20 observations on two variables
type of wool (Type I
, Type 2
)
strength of wool
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
boxplot(strength ~ type, data = Wool, col = c("blue", "purple"))
t.test(strength ~ type, data = Wool, var.equal = TRUE)
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