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Statistics & Parameters: Week 8
by David Warwick
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Statistics & Parameters: Week 8

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Parameter

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Summary Characteristic of Population

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Population Parameter

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Statistic

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Number computed from sample of values taken from larger population

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Sample Estimate

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Statistical Inference

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Preocedures for making conclusions about population parameters

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Curiosity Diagram

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Curiosity about something

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Question about a parameter

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Collect data appropriate for that parameter

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Make inference about the value of the parameter

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Useful terms

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mew

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x-bar/d-bar

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p

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p-hat

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Big 5 Parameters

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One population proportion (or probability)

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Difference in two population proportions

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One population mean

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Population mean for paired differences

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Difference in two population means

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Sampling Distribution

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Probability distribution of possible values of the statistic for repeated samples of the same size taken from the same population.

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