The following data set shows the entrance exam score (Verbal GMAT) for each of eight MBA students along with his or her grade point average (GPA) upon graduation. Calculate the slope and y-intercept for the linear regression equation for these data. GMAT 310 280 270 290 350 260 290 290 GPA 3.7 2.9 3.1 3.2 3.9 2.9 3.7 3.1 Calculate the slope and y-intercept for the linear regression equation for these data. y = [ + () x (Round to three decimal places as needed.)