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Smaller subset of hsb.
hsb
hsbsmall
A data frame of 661 observations on 3 variables.
mathach
Math achievement.
ses
Socio-Economic status.
schoolid
Categorical variable indicating the school the student went to. Treated as factor.
factor
A random subset of size 16 out of the original 160 groups.
data(hsbsmall) str(hsbsmall)
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