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SMPracticals (version 1.3-1)

field.concrete: Field Concrete Mixture Data

Description

Data from a 4x4 Latin square experiment on the efficiency of a field concrete mixer.

Usage

data(field.concrete)

Arguments

source

Unpublished lecture notes, Imperial College, London.

References

Davison, A. C. (2003) Statistical Models. Cambridge University Press. Page 435.

Examples

Run this code
data(field.concrete)
fit <- lm(efficiency~run+day+speed,data=field.concrete)
anova(fit)
summary(fit)
fit <- lm(efficiency~run+day+poly(as.numeric(speed),3),data=field.concrete)
summary(fit)

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