4.32. Designs involving several Latin squares. [See Cochran and Cox (1957), John (1971).] The p & p...

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4.32. Designs involving several Latin squares. [See Cochran and Cox (1957), John (1971).] The p & p Latin square contains only p observations for each treatment. To obtain more replications the experimenter may use several squares, say n. It is immaterial whether the squares used are the same or different.

The appropriate model is

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where yijkh is the observation on treatment j in row i and column k of the hth square. Note that (i(h) and "k(h) are the row and column effects in the hth square, 6h is the effect of the hth square, and (.6)jh is the interaction between treatments and squares.

(a) Set up the normal equations for this model, and solve for estimates of the model parameters. Assume that appropriate side conditions on the parameters are , and k"k(h) $ 0 for each h, $
0, for each h, and 0 for each j.

(b) Write down the analysis of variance table for this design.

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