When we are dealing with multivariate problem then we need an allocation which is optimal
for all the characteristics in some sense because the individual optimum allocations usually …

The problem of optimal allocation of samples in surveys using a stratified sampling plan was
first discussed by Neyman in 1934. Since then, many researchers have studied the problem …

In stratified random sampling, minimizing the variance of a total estimate leads to the optimal
allocation. However, in practice, this original method is scarcely appropriate since in many …

This article deals with the uncertainties in a multivariate stratified sampling problem. The
uncertain parameters of the problem, such as stratum standard deviations, measurement …

Modern surveys aim at fostering accurate information on demographic and other variables.
The necessity for providing figures on regional levels and on a variety of subclasses leads to …

The case of nonresponse in multivariate stratified sampling survey was first introduced by
Hansen and Hurwitz in 1946 considering the sampling variances and costs to be …

The optimal allocation of stratified sample in multivariate surveys faces two main challenges.
First, optimization of the conflicting objectives of the variation of the estimates and survey …

Zuallererst möchte ich mich sehr herzlich bei Prof. Dr. Ralf Münnich für die exzellente
Betreuung während meiner Promotionszeit bedanken. Ich bin nicht nur sehr dankbar dafür …

In this paper, we considered the optimal allocation problem of multiple responses stratified
sample surveys. In the problem, we assume that the following parameters: stratum …

Over the last decades, many researchers have studied and proposed new methods for the
solution of the multivariate optimal allocation problem, which can be performed by choosing …