xmp12.04 {Devore5}R Documentation

data from Example 12.4

Description

The xmp12.04 data frame has 15 rows and 2 columns.

Format

This data frame contains the following columns:

weight
unit weight of the concrete specimen (pcf).
porosity
porosity (%) of the concrete specimen.

Source

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

(1995) ``Pavement thickness design for no-fines concrete parking lots'' J. of Transportation Engineering, 476-484.

Examples

data(xmp12.04)
plot(porosity ~ weight, data = xmp12.04,
     xlab = "Unit weight (pcf) of concrete specimen",
     ylab = "Porosity (%)",
     main = "Data from Example 12.4, page 500")
fm1 <- lm(porosity ~ weight, data = xmp12.04)
abline(fm1)
summary(fm1)
opar <- par(mfrow = c(2,2))
plot(fm1)
par(opar)

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