Answer
$X_0^2\gt X_α^2$: null hypothesis is rejected.
There is enough evidence to conclude that prenatal care and the wantedness of pregnancy are dependent.
Work Step by Step
$H_0:$ prenatal care and the wantedness of pregnancy are independent.
versus
$H_1:$ prenatal care and the wantedness of pregnancy are dependent.
$X_0^2=21.382$
$r=3$, $c=3$.
So, $d.f.=(r−1)(c−1)=4$
$X_α^2=X_{0.05}^2=9.488$
(According to Table VII, for d.f. = 4 and area to the right of critical value = 0.05)
Since $X_0^2\gt X_α^2$, we reject the null hypothesis.
