Question: Consider the weighted least squares normal equations for the case of simple linear regression where time is the predictor variable. Suppose that the variances of

Consider the weighted least squares normal equations for the case of simple linear regression where time is the predictor variable. Suppose that the variances of the errors are proportional to the index of time such that \(w_{t}=1 / t\). Simplify the normal equations for this situation. Solve for the estimates of the model parameters.

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