Question: Is it possible to find a unique optimal solution in this case? If so, compute new and the corresponding value of MSE. If not, explain

Is it possible to find a unique optimal solution in this case? If so, compute new and the corresponding value of MSE. If not, explain why this is not possible. Regardless of which way you answer, similar to part d), explicitly write out the matrix Xnew for this problem and show all steps

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