A data set from Oehlert (2000) \emph{A First Course in Design and
Analysis of Experiments}, New York: W. H. Freeman.

Data originally from Hanley, J.~A. and S.~H. Shapiro (1994).
``Sexual activity and the lifespan of male fruitflies: a dataset that
gets attention.''  {\em Journal of Statistics Education\/}~{\em 2}.

Life spans of male fruit flies with differing numbers
of female companions each day.  Column 1 is treatment
(treatments 1 through 5 are 0, 1 pregnant, 1 virgin,
8 pregnant, or 8 virgin female companions per day).
Column 2 is lifespan in days.