of 6 O Points: 0 of 1 Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below. Hours spent studying, x 1 1 3 4 6 (a) x = 3 hours (b) x =2.5 hours Test score, y 40 45 50 49 61 67 (c) x = 15 hours (d) x = 3.5 hours Find the regression equation. y =[x + 0) (Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.)