If a likelihood ratio test for $H_0: \theta = \theta_0$ against $H_a: \theta \neq \theta_0$ results in a test statistic $\Lambda = -2 \ln(\frac{L(\theta_0)}{L(\hat{\theta})}) = 3.84$, and the parameter space for $\theta$ is $\mathbb{R}^1$, what is the approximate p-value?