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14 Cards in this Set
- Front
- Back
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Descriptive Statistics
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Tools for summarizing evidence on a sample or population
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Inferential statistics
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Tools for generalizing evidence from a sample to a population
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Personal Probability
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A subjective belief for how likely an outcome is to occur
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Relative frequency probability
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The proportion of times an outcome would occur in the long run
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Sampling distribution
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An orderly arrangement of the values of some sample statistics, showing how often each value would occur in all possible random samples of a given size
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Standard Error (SE)
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The standard deviation of a sampling distribution
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Standard Error of the Proportion (SEP)
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The standard deviation of the sampling distribution of sample proportions
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Standard Error of the Mean (SEM)
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The standard deviation of the sampling distribution of sample means
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Point Estimate
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A sample statistic that is our best guess for a single number approximating the population parameter
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Confidence Interval
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A range of numbers, computed from sample data, that is almost sure to include the true population number
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Significance
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How confidently we can generalize a relationship from the sample results to the population
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P-Value
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The probability that a relationship as great as the sample result could be found by chance if there were no relationship in the population
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Hypothesis Test
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A 4-step process for determining significance, namely (1) Hypotheses (2) Test Statistic (3) p-value and (4) Decision
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Test Statistic
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A number calculated from sample data that has a known sampling distribution
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