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

Data originally from Kvam, P. H. and Samaniego, F. J. (1993). ``Life
Testing in Variably Scaled Environments.'' {\em Technometrics} 35, 306--314.

These are the log10 times to failure (in hours) of a resin under five
different temperature stresses.  Column 1 is) temperature (levels 1
through 5 are 175, 194, 213, 231, 250) degrees C, and Column 2 is response.