=+41. Example 4.15 (Chapter 4) describes a randomized block experiment for comparing three different methods (A, B, and C) of curing concrete. Different batches of concrete are used as the blocks in the experiment. For convenience, the data from Table 4.1 is repeated here:

Strength (in MPa)

Batch Method A Method B Method C 1 30.7 33.7 30.5 2 29.1 30.6 32.6 3 30.0 32.2 30.5 4 31.9 34.6 33.5 5 30.5 33.0 32.4 6 26.9 29.3 27.8 7 28.2 28.4 30.7 8 32.4 32.4 33.6 9 26.6 29.5 29.2 10 28.6 29.4 33.2