Exercise 9.15 (continued): Let SS ( ) give sums of squares for the two-way ANOVA model using deviation-coded regressors (i.e., employing sigma constraints to reduce the model matrix to full rank), and...


Exercise 9.15 (continued): Let SS () give sums of squares for the two-way ANOVA model


using deviation-coded regressors (i.e., employing sigma constraints to reduce the model matrix to full rank), and let SS() give sums of squares for the same model using dummy-coded regressors. Working with the model for r = 2 rows and c = 3 columns, use the geometric vector representation of the model to explain why


but that, in general,



May 05, 2022
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