The Logic of Statistical Inference--Testing Hypotheses•Confirming your research hypothesis (relationship between 2 variables) is dependent on ruling out– Rival hypotheses– Research design problems (e.g. measurement error, non-representative sample), and/or– Chance—sampling error--the natural tendency of any sample to differ from the population from which it was drawn 1ScWk 242 Week 6 Inference
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Statistical inference•The use of theoretical sampling distributions to test hypotheses •Theoretical samplingis based on the premise that no relationship exists between the two variables2ScWk 242 Week 6 Inference