Question: Compute the coefficient matrix XTX for the normal equations, and save its value as normal _ coef 1 . Recall, the transpose of a NumPy

Compute the coefficient matrix XTX for the normal equations, and
save its value as normal_coef1. Recall, the transpose of a NumPy array A can be obtained by np.transpose(A), while the matrix produce of two (appropriately-sized) NumPy arrays A and B is obtained by np.matmul(A,B) or A@B.
Compute the right-hand side XTY of the normal equations, and save its value as normal_vect1.

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