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. 1 point Using a data set of 81 observations, we estimate a historical regression equation as 13: : 5.75 + 3.25 a: Xi. Suppose
. 1 point Using a data set of 81 observations, we estimate a historical regression equation as 13: : 5.75 + 3.25 a: Xi. Suppose that}? : 50.2211331- : 300, and 02 : 20 What is the variance of the individual prediction if X0 : 55? 21.914 4.681 1.383 1.914 O
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