Question: .......... Consider the model for simple linear regression, Yi~ N(Bo + Biti, o? ), for i = 1, 2, ..., n where all the Y's

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Consider the model for simple linear regression, Yi~ N(Bo + Biti, o? ), for i = 1, 2, ..., n where all the Y's are independent r.v.'s, and @ 's are known constants. Recall the fitted values are defined as ju; = Bo + B,;, where Bo and By are the least squares estimates of the parameters based on the observed data (I1, y1), . .., (In, Un). Simplify the expression _(@ - @) (yi - ;) as much as possible. You may make use of all derivations and results provided in lectures without proof. Show your work to receive full credit

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