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(Solved): beta_1 hat= {\sum_i x_i(Y_i-Y hat)}/{\sum_i x_i(x_i-x hat)} show that beta_1 hat is a linear estimat ...



beta_1 hat= {\sum_i x_i(Y_i-Y hat)}/{\sum_i x_i(x_i-x hat)} show that beta_1 hat is a linear estimator i.e it can be written in the form beta_1 hat = \sum_{i=1}^{n}\alpha_i Y_i



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