Non-vacuity of improved covariate-adjusted variance
Let νrd\nu^{\mathsf{rd}}νrd, νrd†\nu^{\mathsf{rd}\dag}νrd†, and var(τ^unadj)\mathsf{var}(\widehat{\tau}_{\mathsf{unadj}})var(τunadj) denote the variance quantities defined in the paper for the covariate-adjusted…