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T. Suppose we have data 1'], . . . , Kl and the model is K- : n. + 6:: Where E9513] = U. (i)

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\"T. Suppose we have data 1'], . . . , Kl and the model is K- : n. + 6:: Where E9513] = U. (i) Find the least squares estimator ,8\". (ii) Find an explicit expression for the cross-validation score. (iii) Find an explicit expression for the generalized cross-validation score

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