|Multiple frame agricultural surveys. v. 1: Current surveys based on area and list sampling methods. (FAO Statistical Development Series - 7) (1996)|
|PART II: AREA SAMPLE DESIGNS WITH SEGMENTS THAT HAVE IDENTIFIABLE PHYSICAL BOUNDARIES|
|CHAPTER 4 - ESTIMATION METHODS|
This chapter presents the most common estimation methods used for area sample surveys with segments that have identifiable physical boundaries.
The three basic methods to associate segments with reporting units (holdings or tracts) to define the survey variables are described, namely: the closed, weighted and open segment methods.
It presents the formulae for the direct expansion and variance calculations for the closed, weighted and open segment estimators along with their associated strengths, weaknesses and applications.
Radio estimators and their variance formulae, both for within-survey and between-surveys, are also presented in addition to their strengths, weaknesses and applications.