Refer to Problem 19. Solve G(h) = 0. Provide an interpretation of this result. Find G(0). Provide an interpretation of this result.

Age of Mother, x ……………..………………………….. Incidence of Down Syndrome, y

33 ……………………………………………………………………………. 2.4

34 ……………………………………………………………………………. 3.1

35 …………………………………….………………………………………. 4

36 ………………………………………………………………………….…. 5

37 …………………………………………………………………….……… 6.7

38 ………………………………………..………………………….….……. 8.3

39 ……………………………………….……………………………………. 10

40 …………………………………….…………………………………..…. 13.3

41 …………………………………….…………………………………..…. 16.7

42 …………………………………….…………………………………..…. 22.2

43 …………………………………….…………………………………..…. 28.6

44 …………………………………….……………………………………. 33.3

45 …………………………………….…………………………………..…. 50

Data from problem 19

Professor Grant Alexander wanted to find a linear model that relates the number of hours a student plays video games each week, h, to the cumulative grade-point average,G, of the student. He obtained a random sample of 10 full-time students at his college and asked each student to disclose the number of hours spent playing video games and the student’s cumulative grade-point average.

Hours of Video Games per Week, h ………………………….. Grade-point Average, G

0 ……………………………………………………………………………. 3.49

0 ……………………………………………………………………………. 3.05

2 ……………………………………………………………………………. 3.24

3 ……………………………………………………………………………. 2.82

3 ……………………………………………………………………………. 3.19

5 ……………………………………………………………………………. 2.78

8 ……………………………………………………………………………. 2.31

8 ……………………………………………………………………………. 2.54

10 ……………………………………………………………………………. 2.03

12 ……………………………………………………………………………. 2.51