When a probabilistic sample is made, one must ask: since a population is of N size, 3 what is the smallest number of sample units (persons, organizations, chapters of soap operas, etc.) that I need to make a sample (n) that assures me a certain level of standard error, say less than 0.01? The answer to this question seeks to find a sample that is representative of the universe or population with some possibility of error (to minimize) and level of confidence (maximize), as well as probability.
-
-
-
-
