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5 Cards in this Set
- Front
- Back
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what is a parameter?
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is the # that describes the population
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what is a statistic?
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a # can be computerd from your sample
z s s^2 z-score law of large numbers (LLN) |
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What is sampling distribution?
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Draw 20 people from 1000 people
2nd time: draw different 20 people from 1000 3rd time: draw another different 20 people from 1000 (This is sampling distribution because they have the same sample size from a population) |
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What is sampling distribution of x(bar)?
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Find out the x-bar, the mean, from each sample of a sampling distribution
x-bar= N(M1, standard deviation/square root of n) |
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what is central limit theorem (CLT)?
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sample mean (x-bar)
will follow N(mean, standard deviaton/square root of n) |
