# Hardness (in Brinell units) of a plastic at a range of times since completion of molding
# From Kutner, Nachtscheim, Neter and Li
# Applied Linear Statistical Models, 5th Edition
  hardness   time
  199.0   16.0
  205.0   16.0
  196.0   16.0
  200.0   16.0
  218.0   24.0
  220.0   24.0
  215.0   24.0
  223.0   24.0
  237.0   32.0
  234.0   32.0
  235.0   32.0
  230.0   32.0
  250.0   40.0
  248.0   40.0
  253.0   40.0
  246.0   40.0