Region {BSDA}

Pollution index taken in three regions of the country

Description

Data for Exercise 10.26

Usage

Region

Format

A data frame/tibble with 48 observations on three variables

pollution

pollution index

region

region of a county (west, central, and east)

ranks

ranked values of pollution

References

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

Examples

boxplot(pollution ~ region, data = Region, col = "gray")
anova(lm(pollution ~ region, data = Region))