2.The following data shows the hours students spent playing video games over a two week period and their score on an achievement test:

hours playing video games, x1215141011131214

test score, y10260851101167510868

a)(3 pts)Find the correlation coefficient. (Round to 4 decimal places.)

b)(4 pts)Is there a significant linear relation at the 0.01 level of significance?Show how you determined your answer.

c)(5 pts)Find the regression equation using hours playing video games as x and the test score as y.(Round the coefficients to 2 decimal places.)

d)(3 pts)For each additional hour playing video games, what is the change in the test score?