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...As stated earlier descriptive statistics is used to describe a set of data in terms its frequency central tendency and dispersion although the description important fundamental any analysis it not sufficient answer many most interesting problems that researchers encounter consider an experiment which researcher interested finding whether fertilizer application improves crop production will tell difference between means significant or address these issues must move beyond into realm inferential basic aim test hypothesis relations differences are activity what testing steps definition assumption claim about some characteristic population we should be able accept reject on basis empirical evidence process for choosing different alternatives have mutually exclusive exhaustive being when one true other false vice versa there possibility relationship parameters continued commonly examining relationships variations variables always question can i generalize my findings from sample general if ...