Question: Using MD, find a more efficient restricted estimator than $$hat{theta}_{RN}$$ in (22.57) when $$C_N e hat{A}_N^{-1}$$. Show that a test statistic based on the squared

Using MD, find a more efficient restricted estimator than $$\hat{\theta}_{RN}$$ in (22.57) when $$C_N e \hat{A}_N^{-1}$$. Show that a test statistic based on the squared generalized distance between $$\hat{\theta}_N$$ and your estimator is identical to the Wald test statistic based on the inefficient estimator.

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