Nature

Log-ratio type estimation for the finite population mean under simple random sampling without replacement with theory, simulation and application

We propose two novel logarithmic ratio–type estimators for the finite-population mean under simple random sampling without replacement (SRSWOR). The estimators integrate a logarithmic transformation ...
Nature

A general class of improved population variance estimators under non-sampling errors using calibrated weights in stratified sampling

In many practical scenarios, estimating population variance is a crucial task with wide-ranging applications, spanning various domains including finance, healthcare, and weather forecasting. Actuaries ...
Simon Fraser University

Random Sampling

In a simple random sample, each individual in the population has an equal probability of being chosen. Additionally, each sample of size n has an equal probability of being the chosen sample. This ...
University of Bristol

From population to sample

On watching this video, students should be able to: Confirm that that aspects of good study design include defining the research question, defining the target population, and using an appropriate ...