You are conducting a study testing whether a childs age is a good predictor of his or her height. You have collected the following data from a random sample of seven children:

Age (months) Height (cm)

34. 77

50 95

63 111

59 105

53 101

44 102

40 94

Perform a regression of height (dependent variable) on age (independent variable).

What is the Y-intercept of the regression line?

52.81

60.46

59.70

43.73

59.56

What is the slope (beta) of the regression line?

0.92

1.44

1.16

1.27

0.45

The regression model predicts that a 3-year-old child (36 months) would be approximately tall.