Explain how the factors (sigma^{2}, Sigmaleft(x_{i}-bar{x} ight)^{2}), and (N) affect the precision with which we can estimate

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Explain how the factors \(\sigma^{2}, \Sigma\left(x_{i}-\bar{x}\right)^{2}\), and \(N\) affect the precision with which we can estimate the unknown parameter \(\beta_{2}\).

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