For Exercises 19–22, follow these steps. Assume that the regression model assumptions are valid.
21. Data in Exercise 13, where
13.1.21
(a) (b) (c)
(d) (e) : There is no linear relationship between and . : There is a linear relationship between and . Reject if -value . Since -value , we reject . There is evidence at level of significance that and that there is a linear relationship between and .