Statistical Sciences 2244A/B Study Guide - Comprehensive Midterm Guide: Sampling Error, Systematic Sampling, Statistical Parameter
5 Oct 2016
School
Department
Professor
Document Summary
S t a t i s t i c a l s c i e n c e s 2 2 4 4 a / b. Sample - the part of population from which we actually collect information. We use this to draw conclusions about the entire population. To obtain a proper sample design, find exactly what population we want to describe and what we want to measure. o. Not all stat studies use samples that are drawn directly from the entire population of interest. Experiments use samples from an entire population of interest. Experiment cannot always be extended to the whole intended population. Statistical interference: process of drawing conclusions about a population on the basis of sample data. o. Infer information about polulation from what is known about the sample. Sampling design: describes how exactly to choose a sample from the population. Convenience sample: sampling design that chooses individuals close at hand.
