In regards to Statistics: the exploration and and analysis of data (7th edition), chapter 13, question...

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In regards to Statistics: the exploration and and analysis ofdata (7th edition), chapter 13, question 43. Part a of the questionasks for the equation of an estimated regression line. The solutionis already on chegg, but my question is: why are SSR, Se, and Sbstill calculated, after y-hat=2.7...+(0.04...)x has already beensolved for?

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SSR is the sum of squares due to regression it is the sum of the squared differences between the predicted values and the mean value of y or dependent variable It is calculated because it    See Answer
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