A company is interested in the effectiveness of radio advertising, X1, and newspaper advertising, X2, on the overall sales of its products. The sales of their products and the levels of both types of media expenditure (ail in thousands of dollars) for 22 locations were recorded in the following table during a one month test period. Answer parts (a) and (b) below. Click the icon to view the data table. a. Determine the VIF for each independent variable in the model, with VIF 1 and VIF 2 being the VIF for X1 and X2, respectively VF1=ViF2= (Round to three decimal places as needed.) \begin{tabular}{|c|r|r|r|} \hline Row & Radio ads & Newspaper a \\ \hline 1 & 978 & 0 & 40 \\ \hline 2 & 1126 & 0 & 40 \\ \hline 3 & 876 & 25 & 25 \\ \hline 4 & 629 & 25 & 25 \\ \hline 5 & 909 & 30 & 30 \\ \hline 6 & 967 & 30 & 30 \\ \hline 7 & 925 & 35 & 35 \\ \hline 8 & 1177 & 35 & 35 \\ \hline 9 & 880 & 40 & 25 \\ \hline 10 & 975 & 40 & 25 \\ \hline 11 & 1636 & 45 & 45 \\ \hline 12 & 1574 & 45 & 45 \\ \hline 13 & 1048 & 50 & 0 \\ \hline 14 & 911 & 50 & 0 \\ \hline 15 & 1331 & 55 & 25 \\ \hline 16 & 1331 & 55 & 25 \\ \hline 17 & 1416 & 60 & 30 \\ \hline 18 & 1429 & 60 & 30 \\ \hline 19 & 1524 & 65 & 35 \\ \hline 20 & 1727 & 66 & 35 \\ \hline 21 & 1868 & 69 & 40 \\ \hline 22 & 1709 & 70 & 40 \\ \hline \end{tabular}