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AP Statistics
Unit 7 – Means
Topic 7.8
The t-statistic in a two-sample t-test measures:
The spread of the data within each group.
The probability of obtaining the observed sample means.
The ratio of the means to the standard error of the difference.
The difference between the two group means.
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AP Statistics - 7.8 Setting Up a Test for the Difference of Two Population Means
Key terms
t-statistic
Two-sample t-test
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Cram Mode
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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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