xmp09.09 {Devore5} | R Documentation |
The xmp09.09
data frame has 16 rows and 4 columns.
This data frame contains the following columns:
Devore, J. L. (2000) Probability and Statistics for Engineering and the Sciences (5th ed), Duxbury
data(xmp09.09) boxplot(xmp09.09[, c("Before", "After")], main = "Data from Example 9.9") attach(xmp09.09) boxplot(Difference, main = "Differences in Example 9.9") qqnorm(Difference, main = "Normal probability plot (compare Figure 9.5, p. 377)") t.test(Difference) t.test(Before, After, paired = TRUE) # same test detach()