The composite data frame has 12 rows and 3 columns.
Six pullets were placed into each of 12 pens. Four blocks were formed
from groups of 3 pens based on location. Three treatments were
applied. The number of eggs produced was recorded
data(eggprod)This data frame contains the following columns:
treatThree treatments: O, E or F
blockFour blocks labeled 1-4
eggsNumber of eggs produced