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7 Cards in this Set
- Front
- Back
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study population
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the population of individuals from which samples are obtained for inclusion in an investigation
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sample
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a subset of all possible measurements from a population
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inferential statistics
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-test hypotheses
-demonstrate an association-make population comparisons |
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descriptive statistics
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describe and summarize sample characteristic
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gaussian distribution
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-the most commonly assumed population distribution used in statistics
-emipirical rule: bell curve |
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normal distribuition data
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1SD: 68%
2SD: 95% 3SD: 99.7% |
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standard error
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-a measure of sampling error
-the spread in the mean that would be if ALL possible samples of the same size as the one actually obtained were drawn from the population -used to determine confidence intervals |
