From: A ratio chain-type exponential estimator for finite population mean using double sampling
Estimators | Mean squared errors (MSE’s) | ||
---|---|---|---|
n′ = 60, n = 30 | n′ = 65, n = 35 | n′ = 70, n = 40 | |
\( \bar{y}_{0} \) | 3583.66 | 2852.30 | 2303.78 |
\( \bar{y}_{1} \) | 1691.43 | 1355.15 | 1087.35 |
\( \bar{y}_{2} \) | 1690.47 | 1354.39 | 1086.73 |
\( \bar{y}_{3} \) | 1490.62 | 1192.96 | 958.26 |
\( \bar{y}_{4} \) | 1282.01 | 1024.46 | 824.15 |
\( \bar{y}_{5} \) | 1278.03 | 1021.27 | 821.59 |
\( \bar{y}_{6} \) | 1275.16 | 1018.37 | 819.03 |
\( \bar{y}_{7} \) | 1274.17 | 1017.59 | 818.40 |
\( \bar{y}_{8} \) | 1462.31 | 1181.19 | 950.65 |
\( \bar{y}_{m} \) | 1136.84 | 921.83 | 748.56 |