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Data for Example 10.4
Cigar
A data frame with 100 observations on the following 6 variables.
brandA
a numeric vector
brandB
brandC
brandD
tar
brand
# NOT RUN { str(Cigar) attach(Cigar) boxplot(tar~brand) anova(lm(tar~as.factor(brand))) detach(Cigar) # }
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