POL SCI 3 Chapter Notes - Chapter 7: Quota Sampling, Sampling Bias, Statistic
22 Nov 2016
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Define or specify appropriate population (any well defined set of units of values. Sampling arises when researcher takes measurements on a subset of a analysis, all units to analysis to which a hypothesis applies, not necessarily people, can be countries, agencies, books etc. ) Select some members of the population (cid:498)sample(cid:499) (any subset of units. Examine and measure features of interest (cid:498)sample statistics(cid:499) (used to. Decision made on practical grounds time, money, other costs. Sample less accurate or more subject to error than info from population. Population parameter traits like averages, differences between groups. Estimator sample statistic based on sample observations that estimates: sample statistic specific estimator of a population characteristic or. Element single occurrence of objects or entities being studied, often. Stratum (population can be stratified/ subdivided) subgroup of a. Sampling frame particular population from which a sample is actually interest to the research question should be included if not any data may not.
