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question two Question 2 [5 marks] You are given the following data based on 10 pairs of observations on Y and X. [Y = 507,

question two

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Question 2 [5 marks] You are given the following data based on 10 pairs of observations on Y and X. [Y = 507, [ X, = 5600, ) X,Y = 305550 [x2 = 4760000, M Y2 = 26071 Assuming all the assumptions of CLRM are fulfilled, obtain i) by and by (2 marks) ii) Standard error of the regression (SER) (1mark) iii) Standard errors of these estimators (bj and b2). (2 marks) b = Y-b,x EXY - nXY by = [x , - nx2 [e? = [r? + nb? +b; [x? - 2b, [ Y, - 2b, [ x, Y, + 2b, b, Ex, V ( b , ) = oh = " [ (X, - X ) V ( b . ) = 0 by = S( X , - x )

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