| xmp09.10 {Devore5} | R Documentation |
The xmp09.10 data frame has 16 rows and 3 columns.
This data frame contains the following columns:
This is an extended version of the data from Example 7.11.
Devore, J. L. (2000) Probability and Statistics for Engineering and the Sciences (5th ed), Duxbury
(1996), Time-dependent bending properties of lumber, J. of Testing and Evaluation, 187-193.
data(xmp09.10)
boxplot(xmp09.10[, c("t1.min", "t4.wks")],
main = "Data from Example 9.10")
attach(xmp09.10)
## compare to Figure 9.7, page 379
qqnorm(Difference, main = "Differences from Example 9.10",
ylab = "Difference in modulus of elasticity")
qqline(Difference)
t.test(Difference, conf = 0.99)
t.test(t1.min, t4.wks, paired = TRUE, conf = 0.99) # same thing
detach()