Industrial Waste Data Set

Description

Industrial waste data set taken from Westfall et al. (1999, p. 177). Simultaneous confidence intervals for interaction contrasts in a two-way layout with interactions.

Usage

data(waste)

Format

This data frame contains the following variables

temp

Temperature at 3 levels: low, medium, high.

envir

Environment at 5 levels: env1 ... env5.

waste

Response variable: waste output in a manufacturing plant.

Details

See Westfall et al. (1999, p. 177)

Source

P. H. Westfall, R. D. Tobias, D. Rom, R. D. Wolfinger, Y. Hochberg (1999). Multiple Comparisons and Multiple Tests Using the SAS System. Cary, NC: SAS Institute Inc.

Examples

data(waste)
summary(aov(waste ~ envir + temp + envir*temp, data=waste))

summary(simint(waste ~ envir:temp, data=waste,
               type="Tetrade", eps=0.1))
summary(simtest(waste ~ envir:temp, data=waste,
                type="Tetrade", eps=0.1))