Figure 2
From: Improved exponential type ratio estimator in double sampling for stratification

Graphs for percent relative efficiency and mean square error \(\overline{y}_{ds}\), \(\hat{\overline{Y}}_{R}^{ds}\), \(\hat{\overline{Y}}_{{\text{Re}}}^{ds}\), \(\hat{\overline{Y}}_{Rd}^{*}\), \(\hat{\overline{Y}}_{{\text{Re}}}^{*}\), \(\hat{\overline{Y}}_{Rpd}^{*}\) and \(\hat{\overline{Y}}_{CRe}^{ds}\) with respect to \(\overline{y}_{ds}\) for unequal strata size.