ADMS 2320 Study Guide - Quiz Guide: Dill, Random Variable, Ob River

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Large populations make (number of right times) significance level (number of wrong times) is some characteristic of a population or sample. Population is the entire set of all items under study, very large, sometimes infinite. Sample is a set of data from the population, potentially very large, but less than. Parameter a descriptive measure of a population, in most applications of inferential statistics, the parameter represents the information we need. Descriptive statistics is a set of methods of organizing, summarizing, and presenting data in a convenient and informative way. Descriptive statistics describe the data set that"s being analyzed, but doesn"t allow us to draw any conclusions or make any inferences about the data. Inferential statistics is also a set of methods, but it is used to draw conclusions or inferences about characteristics of populations based on data from a sample. R ationale: investigating each member impractical, extremely expensive and time-consuming.