Ononot — For a simple linear regression with n = 20 observations, \ba

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Linear Modelingmedium

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For a simple linear regression with $n = 20$ observations, $\bar{x} = 8.0$ , $\sum (x_i - \bar{x})^2 = 80$ , and the standard error of the estimate is $s_e = 4.0$ . Calculate the standard error of the predicted mean response at $x_0 = 12$ .