str(Quail)
attach(Quail)
boxplot(placebo,treatmen,names=c("Placebo","Treatment"),
horizontal=TRUE,xlab="LDL level",col=c("lightblue","yellow"))
boxplot(placebo,treatmen,names=c("Placebo","Treatment"),
ylab="LDL level",col=c("lightblue","yellow"))
detach(Quail)
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