Table 2 Percent relative efficiencies of \(\overline{y}_{ds}\), \(\hat{\overline{Y}}_{R}^{ds}\), \(\hat{\overline{Y}}_{{\text{Re}}}^{ds}\), \(\hat{\overline{Y}}_{{\text{Re}}}^{*}\)\(\hat{\overline{Y}}_{Rd}^{*}\), \(\hat{\overline{Y}}_{Rpd}^{*}\) and \(\hat{\overline{Y}}_{CRe}^{ds}\) with respect to \(\overline{y}_{ds}\).

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

Estimators

Percent relative efficiency

Population 1

Population 2

\(\overline{y}_{ds}\)

100.00

100.00

\(\hat{\overline{Y}}_{R}^{ds}\)

81.60

160.95

\(\hat{\overline{Y}}_{{\text{Re}}}^{ds}\)

89.23

91.62

\(\hat{\overline{Y}}_{{\text{Re}}}^{*}\)

109.80

159.45

\(\hat{\overline{Y}}_{Rd}^{*}\)

101.43

*

\(\hat{\overline{Y}}_{Rpd}^{*}\)

58.08

*

\(\hat{\overline{Y}}_{{C{\text{Re}} }}^{ds}\)

110.41

169.13

  1. “*” Not applicable.
  2. Significant values are in bold.