Question: Given data (x1, y1 ), (x2, y2 ), ... , (xn, yn ). Suppose we are interested in fitting a simple linear regression model y

Given data (x1, y1 ), (x2, y2 ), ... , (xn, yn ). Suppose we are interested in fitting a simple linear regression model y = 0 + 1 + , where the intercept 0 is known. (1) Find the least squares estimator 1 for 1. (2) Compute the mean square error of the least square estimator 1.

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