Hardwood {BSDA}

Tensile strength of Kraft paper for different percentages of hardwood in the batches of pulp

Description

Data for Example 2.18 and Exercise 9.34

Usage

Hardwood

Format

A data frame/tibble with 19 observations on two variables

tensile

tensile strength of kraft paper (in pounds per square inch)

hardwood

percent of hardwood in the batch of pulp that was used to produce the paper

Source

G. Joglekar, et al., "Lack-of-Fit Testing When Replicates Are Not Available," The American Statistician, 43(3), (1989), 135-143.

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples

plot(tensile ~ hardwood, data = Hardwood)
model <- lm(tensile ~ hardwood, data = Hardwood)
abline(model, col = "red")
plot(model, which = 1)