QUESTION ONE (10 MARKS) a) Two series X and Y are presented below: Series X 62 72 78 58 65 70 66 63 60 72 Series Y 50 65 63 50 54 60 61 55 54 65 i)Using the information, we can now obtain the OLS estimators , and B, respectively ii) Given that X= 140, predict the value for Y. iii) Calculate the elasticity of profit with respect to sales using point elasticity or are elasticity when X1=90 and X2= 125. iii)Determine the RSS for the model