xmp11.16 {Devore6}R Documentation

data from Example 11.16

Description

The xmp11.16 data frame has 16 rows and 6 columns of data from a blocked, 2^3 replicated factorial design.

Format

This data frame contains the following columns:

strength
strength of the product solution (arbitrary units).
tempture
reactor temperature - coded as +/-1.
gas
gas throughput - coded as +/-1.
conc
concentration of active constituent - coded as +/-1.
block
block in which the experiment was run.

Source

(1951), Factorial experiments in pilot plant studies, Industrial and Engineering Chemistry, 1300–1306.

Devore, J. L. (2003) Probability and Statistics for Engineering and the Sciences (6th ed), Duxbury

Examples

data(xmp11.16)
## leave -1/+1 encoding for experimental factors, convert block
fm1 <- aov(strength ~ tempture * gas * conc + block,
           data = xmp11.16)
summary(fm1)     # anova table

[Package Devore6 version 0.5-6 Index]