Verify that Vsb0 1 b1xd is indeed given by the expressionin the text. [Hint: VsodiYid 5
Chapter 12, Problem 55(choose chapter or problem)
Verify that \(V\left(\hat{\beta}_{0}+\hat{\beta}_{1} x\right)\) is indeed given by the expression in the text. [Hint: \(V\left(\Sigma d_{i} Y_{i}\right)=\Sigma d_{i}^{2} \cdot V\left(Y_{i}\right)\).]
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