xmp10.01 {Devore5}R Documentation

data from Example 10.1

Description

The xmp10.01 data frame has 24 rows and 2 columns.

Format

This data frame contains the following columns:

strength
a numeric vector
type
a factor with levels A B C D

Details

Source

Devore, J. L. (2000) Probability and Statistics for Engineering and the Sciences (5th ed), Duxbury

Examples

data(xmp10.01)
boxplot(strength ~ type, data = xmp10.01, 
    main = "Data from Example (compare Figure 10.1, p. 405)")
fm1 <- lm( strength ~ type, data = xmp10.01 )  # fit anova model
qqnorm(resid(fm1), main = "Compare to Figure 10.2, p. 407")
anova(fm1)     # compare results in Example 10.2, p. 409