Wool {BSDA}

Strength tests of two types of wool fabric

Description

Data for Exercise 7.42

Usage

Wool

Format

A data frame/tibble with 20 observations on two variables

type

type of wool (Type I, Type 2)

strength

strength of wool

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples

boxplot(strength ~ type, data = Wool, col = c("blue", "purple"))
t.test(strength ~ type, data = Wool, var.equal = TRUE)