RDWW | R Documentation |
This data set are about the ratio of dry to wet wheat of four different blocks and four times of nitrogen applied: None, Early, Middle, and Late. The test of interaction between the blocks and the level of nitrogen applied is of interest.
A matrix with four rows (Blocks) and four columns (Nitrogen Applied):
Block1
Block2
Block3
Block4
None
Early
Middle
Late
Ostle, B. (1963). Statistics in Research, Basic Concepts and Techniques for Research Works. 2nd ed, p. 396. The Iowa State University Press.
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