The following data set shows the entrance oxam score (Verbal GMAT) for each of eight MBA students along with his or her grade point average (GPA) upon graduation. GMAT 310 280 260 280 340 280 310 290 0 GPA 3.7 2.9 3.1 3.8 A linear regression on the data gives the equation below. Complete parts a through d below. Predicted GPA = - 0.633618 + 0.013561(GMAT) a. Calculate the SST. SST = (Round to three decimal places as needed.) b. Partition the total sum of squares into the SSR and SSE. SSR = SSE = (Round to three decimal places as needed.) c. Calculate the sample coefficient of determination. RX =1 (Round to three decimal places as needed.) d. Test the significance of the population coefficient of determination using a = 0.05. Determine the null and alternative hypotheses. Choose the correct answer below. OA. Ho: $2 20 OB. Ho: p2 so Hy: p/ co H1: p2 >0