In a study of clinical recovery, researchers model the hazard function $h(t)$ as $h_0(t) \exp(\beta X)$. If the observed coefficient $\hat{\beta}$ is $0.6$ with a standard error of $0.25$, and the researcher claims the relative risk for a unit increase in $X$ is $\exp(0.6) \approx 1.82$, what is the lower bound of the 95% Wald confidence interval for this relative risk?