Standard error Flashcards

1
Q

standard error

A

a means to quantify how good a statistic is at representing the population

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2
Q

theoretical distributions

A

distributions that we dont typically produce or observe directly BUT we can still make estimates from the available data eg sampling distributions

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3
Q

sampling distribution

A

frequency distribution of any
statistic…… were we to repeatedly calculate it many times from a series of randomly drawn
samples from the same underlying population

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4
Q

the sampling distribution will always have the same characteristics

A

*same mean as population mean but narrower spread of scores

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5
Q

Formula for standard error of the mean

A

SD of sample / SQRT of sample size

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6
Q

what type of distribution is the sampling distribution of the mean

A

normal distribution

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7
Q

confidence intervals

A

putting an upper and lower bound around where we think the population mean is likely to be given our sample mean

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8
Q

68.3%

A

% of population that falls within +/- 1 SE

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9
Q

95%

A

standard level of confidence wanted

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