Question: Let the sample regression line be (i=1,2...n) and let x and y denote the sample means for the independent and dependent variables, re- spectively. (a)

Let the sample regression line be (i=1,2...n) and let x and y denote the sample means for the independent and dependent variables, re- spectively.

(a) Show that e-y--bix,-3)

(b) Using the result in part (a), show that

(c) Using the result in part (a), show that

(d) Show that e,= 0

(e) Using the results in parts

(c) and (d), show that SST SSR+SSE

(f) Using the result in part (a), show that

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