This is a preview. Log in through your library . Abstract Optimum allocation in stratified random sampling leads to a constrained optimization problem which is usually solved by any of the following ...

This is the description of the sample plan for a survey of enrollments by mail questionnaire of 1800 colleges and universities in the United States. The requirements of the survey included speed, ...

Discover how simple random sampling ensures accurate and unbiased population research, offering efficiency and fairness over ...