[ 2 0 marks ] Assume the standard unit - block - treatment modely = 1 n + X 1 + X 2 + ,
marks Assume the standard unitblocktreatment modelynXXwith y the nvector of responses, n is the nvector with every entry equal to one, X and X are nb and nt model matrices for blocks and treatments, respectively, is a constant parameter, bT holds the block effects, tT holds the treatment effects and NnIn is the nvector of errors with see Section of the notes Consider the tvector