Table 19 Memory type stratified and calibrated ratio estimators with their mses.

From: Innovative memory-type calibration estimators for better survey accuracy in stratified sampling

EWMA

y*=17049.87

\(\:{\widehat{y}}_{mr}=\)19114.05

MSE(y*) = 840334.5

MSE(\(\:{\widehat{y}}_{mr}\)) = 117899.1

RE = 7.13

EEWMA

y*=16793.8

\(\:{\widehat{y}}_{mre}=\)18616.87

MSE(y*) = 815282.3

MSE(\(\:{\widehat{y}}_{mre}\)) = 112764.8

RE = 7.23

HEWMA

y*=8751.603

\(\:{\widehat{y}}_{mrh}=\)7540.786

MSE(y*) = 221403.8

MSE(\(\:{\widehat{y}}_{mrh}\)) = 27285.44

RE = 8.11