Question

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 the value of y for 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.

font size decreased by 1 font size increased by 1 Hours spent studying comma x Hours spent studying, x	00	11	22	33	44	66		​(a) x=22 hours	​(b) x=4.54.5 hours
Test​ score, y	4040	4545	5151	4949	6363	7171		​(c) x=1212 hours	​(d) x=2.52.5 hours

Find the regression equation.

y=? x+?

​(Round the slope to three decimal places as needed. Round the​ y-intercept to two decimal places as​ needed.)

Answer 1