1. Verify that the constructed error mean square for testing HERB effects in the analysis of variance approach is E’ = 166.31 and that its approximate degrees of freedom are f = 14.
2. Determine the estimable functions for the population marginal means for a 2 × 3 factorial set of treatments in a randomized complete block design with r = 4 blocks. Include A × B interactions in your model. Give the estimable functions for the six treatment means and for the marginal treatment means for each treatment factor. How do the estimable functions change if there are no interactions in the model? Suppose cell (1, 2) is empty. Which means become nonestimable if there are interactions in the model? If there are no interactions in the model?
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