Obesity in children is a major concern because it puts them at risk for several serious medical problems. Some researchers believe that a major issue related to this is that children these days spend too much time watching television and not enough time being active. Based on a sample of boys roughly the same age and height, data was collected regarding hours of television watched per day and weight.

t.v. watching(hr) weight(lb)

1.5 79

5.0 105

3.5 96

2.5 83

4.0 99

1.0 78

0.5 68

a. compute Pearson Correlation Coefficient (r)

b. compute the slope(b)

c. compute the y intercept(a)

d. Use the regression (the perdition equation) to predict the weight of a child who watches 3.0 hours of t.v. a day?