If the Hypothesis $\sigma=0.20$ Is Tested Against the Hypothesis That $\sigma \neq 0.20$

Multiple Choice

If the hypothesis $\sigma=0.20$ is tested against the hypothesis that $\sigma \neq 0.20$ , with $\alpha=0.05$ , based on a random sample of size $n=18$ , then the appropriate tabled value(s) is(are)

A) $X_{0.05}^{2}$ only.
B) $X_{0.025}^{2}$ and $X_{0.975}^{2}$ .
C) $X_{0.10}^{2}$ only.
D) $X_{0.025}^{2}$ only.