MPV (version 1.64)

p4.19: Data Set for Problem 4-19

Description

The p4.19 data frame has 14 observations on a designed experiment studying the relationship between abrasion index for a tire tread compound and three factors.

Usage

data(p4.19)

Format

This data frame contains the following columns:

x1

hydrated silica level

x2

silane coupling agent level

x3

sulfur level

y

abrasion index for a tire tread compound

References

Derringer and Suich (1980) Simultaneous Optimization of Several Response Variables. Journal of Quality Technology.

Examples

data(p4.19)
attach(p4.19)
y.lm <- lm(y ~ x1 + x2 + x3)
summary(y.lm)
plot(y.lm, which=1)
y.lm <- lm(y ~ x1)
detach(p4.19)