Residual contaminant following the use of three different cleansing agents
Data for Exercise 10.16
Clean
A data frame/tibble with 45 observations on two variables
residual contaminants
a factor with levels A, B, and C
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
boxplot(clean ~ agent, col = c("red", "blue", "green"), data = Clean)
anova(lm(clean ~ agent, data = Clean))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.