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...Why do we need inferential statistics typically are interested in the population not sample when study an intervention for example want to be able generalize larger group but usually can t gather whole of scores variability remember that measurements sciences variable they change from observation assess this and aid our decision making what learn provides us with educated guesses about quantitative characteristics populations parameters is central tendency one different than a second varieties procedures parameter estimation using data random estimate which drawn hypothesis testing formulating opposing hypotheses determining samples most likely correct may seem overly complicated it elegant way answering research questions determine these two language teaching method improves reading does improve how best teach children read...