Consider Regression 2 above.Suppose someone claims that if mothers smoke 10 cigarettes a day it reduce the birth weights of their babies by 1 pound, all else equal, compared to nonsmoking mothers.The test statistic associated with this null hypothesis is _______ and the null hypothesis ___________ at the 5-percent level of significance.

19.86; cannot be rejected.

1.94; cannot be rejected.

1.59; cannot be rejected.

8.71; can be rejected