.     Given the regression equation                                                                              

               Y_i = -1336.049+12.7X_1i+8.57X_2i

            SE     (175.2725)    (0.9123)   (5.8019)

                    R² = 0.89             n=38            DW= 0.37

Where Y= Auction Price of antique clocks in dollars.

X₁= Age of clock in years  and  X₂= Number of bidders

* What does underlined bold term mean? Explain

 *For the above model if critical value at 1 % significance level for d_L is 1.176 and d_U is 1.388 then draw the complete chart and test your hypothesis of serial correlation.