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Unformatted text preview: 1 Predicting Parameters Generalize beyond the data Generalize beyond the data s Statistic s A characteristic of a sample s Parameter s A characteristic of a population s Statistical inference s The process of estimating parameters from statistics Random Sampling s Random sampling s Allows us to use the logic of statistical inferences, that is, estimating parameters from statistics s Random sample s A collection of phenomena so selected that each phenomenon has an equal chance of being selected 2 Three Kinds of Distributions s Sample Distribution s Mean ( M ) and standard deviation ( s ) s Population Distribution s Mean ( μ ) and standard deviation ( σ ) s Sampling Distribution s The distribution of a statistic s Mean ( ) and standard deviation s Standard error of the mean ( σ M ) M Sampling Error s An estimate of how statistics may be expected to deviate from parameters when sampling randomly from a given population....
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- Fall '08
- Statistics, Null hypothesis