Two-phase sampling
A chain ratio exponential type estimator in two-phase sampling using auxiliary information
... In case when the population mean X of the auxiliary variable x is not known then it is often estimated from a preliminary large sample on which only the auxiliary character x is observed. After that a small sample is ...
14
Mixture Regression Estimators Using Multi-Auxiliary Variables and Attributes in Two-Phase Sampling
... double phase sampling with full information, partial information and no in- ...single phase sampling for estimating population mean by using information on auxiliary variables and attributes ...
13
Mixture Regression Estimators Using Multi Auxiliary Variables and Attributes in Two Phase Sampling
... The Table 1 shows percent relative efficiency of proposed and existing estimator with respect to mean per unit estimator for two phase sampling. It is observed that Regression estimators using one ...
13
Ratio Cum Product Estimator Using Multiple Auxiliary Attributes in Two Phase Sampling
... in two-phase sampling using multiple auxiliary attributes with existing estimators of finite population that uses one or multiple auxiliary attributes namely mean per unit, ratio and product ...
12
Ratio-cum-product estimator using multiple auxiliary attributes in two-phase sampling
... in two-phase sampling using multiple auxiliary attributes with existing estimators of finite population that uses one or multiple auxiliary attributes namely mean per unit, ratio and product ...
12
Mixture Ratio Estimators Using Multi Auxiliary Variables and Attributes for Two Phase Sampling
... Table 1 shows percent relative efficiency of proposed estimator with respect to mean per unit estimator for single-phase sampling. It is very clear from Table 1 that our proposed mixture ratio estimator ...
14
Improved estimation of finite population median under two-phase sampling when using two auxiliary variables
... under two-phase sampling scheme using two auxiliary ...using two auxiliary ...of two auxiliary variables under two-phase sampling ...
7
Replication Variance Estimation under Two-phase Sampling in the Presence of Non-response
... of bias for nonlinear estimation. The possibility of using this technique for the purpose of variance estimation was proposed by Tukey (1958). He (1958) sug- gested that each jackknife replicate estimate might be ...
19
Generalized Class of Variance Estimators under Two-Phase Sampling for Partial Information Case
... have two situations regarding auxiliary information when auxiliary information is already available at population level then we use Single-phase ...Otherwise, two-phase sampling is more ...
12
Modified Ratio and Product Estimators for Estimating Population Mean in Two-Phase Sampling
... proposed two exponential ratio and exponential product type class of ...under two-phase sampling scheme have been ...under two-phase sampling using four populations. In ...
8
General Class of Ratio-Cum-Product Estimators in Two-Phase Sampling using Multi-Auxiliary Variables
... in two phase ...and two phase sampling with one auxiliary ...proposing two additional partial information cases (PIC-II and PIC-III) in addendum to the existing partial ...
9
An Alternative Ratio-Cum-Product Estimator of Finite Population Mean Using Coefficient of Kurtosis of Two Auxiliary Variates in Two-Phase Sampling
... in two- phase sampling y R (d ) , two-phase sampling product estimator y P (d ) , two-phase sampling versions of Singh et ...
10
New Shewhart and EWMA Type Control Charts using Exponential Type Estimator with Two Auxiliary Variables under Two Phase Sampling
... Double sampling (DS) Shewhart and Double sampling (DS) EWMA control charts based on an exponential estimator using two auxiliary variables under two phase ...
20
Estimation of finite population mean in two-phase sampling with known coefficient of variation of an auxiliary character
... (or two-phase) sampling version of (Singh and Tailor, 2005) es- timator has been suggested along with its properties under large sample ...double sampling ratio ( t Rd ) product ( t Pd ) ...
16
Exponential chain dual to ratio and regression type estimators of population mean in two-phase sampling
... under two-phase sampling setup where he utilized the information on two auxiliary variables x and z under the assumption that the population ...
11
Mean Estimation under Imputation based on Two-Phase Sampling Design using an Auxiliary Variable
... the two-phase sampling scheme framework, in the presence of a highly positively correlated auxiliary variable, implicitly assuming ...MCAR. Two-phase sampling design is more ...
20
Generalized Ratio Cum Product Estimators for Two Phase Sampling Using Multi Auxiliary Variables
... In this paper, we have extended the Ratio-cum-product estimator suggested by Singh [9] to two phase sampling by considering the three strategies proposed by Samiuddin and Hanif [14] i.e. when either ...
13
An Ecient Class of Estimators of Population Mean in Two-Phase Sampling Using Two Auxiliary Variables
... In this paper, we have proposed a class of estimators in two-phase sampling using two auxiliary variables. The bias and mean squared error MSE are obtained up to the first order of ...
12
Modified Factor-Type Estimators with Two Auxiliary Variables under Two-Phase Sampling
... ABSTRACT: In this paper, two modified factor-type estimators with two auxiliary variables for population mean have been suggested. Bias and MSE of the suggested estimators have been derived up to first ...
14
A CLASS OF ESTIMATORS FOR PREDICTIVE ESTIMATION OF POPULATION MEAN IN TWO-PHASE SAMPLING
... The present paper deals with the estimation of a finite population mean in the presence of two auxiliary variables under a two-phase sampling set up. It is assumed that the population mean of ...
8