Answer
There is enough evidence to conclude that there is a linear relation between height and head circumference.
There is not enough evidence to conclude that there is a linear relation between weight and head circumference.
Work Step by Step
1) $H_0: β_1=0$ versus $H_1: β_1\ne0$
See the results obtained in item (b)
$t_0=2.97$ with a P-value $=0.013\ltα=0.05$. Reject the null hypothesis.
2) $H_0: β_2=0$ versus $H_1: β_2\ne0$
See the results obtained in item (b)
$t_0=1.10$ with a P-value $=0.293\gtα=0.05$. Do not reject the null hypothesis.
