AP Stats Unit 7 Vocab

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6 Terms

1
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Confidence Interval formula

2
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CI used to estimate pop mean when the population standard deviation is unknown

One sample t interval for a mean

3
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a CI used with paired data to estimate a population mean difference

paired t interval for a mean difference

4
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T-test formula

(mean-given) / (Sx/√n)

5
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a significance test of the null hypothesis that a population mean is equal to a specified value, when the population standard deviation is unknown

one sample t test for a mean

6
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significance test of the null hypothesis that a population mean difference is equal to a specified value, usually 0

paired t test for a mean difference