Justifying Claims: Difference of Two Means
AP Statistics · Flashcards · Recall
AP STATISTICS · FLASHCARDS
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QUESTION
What assumption is needed about samples for CI?
QUESTION
What does the term 'statistically significant' mean?
QUESTION
What is the standard error in the difference of two means?
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ANSWER
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\sqrt{\frac{s_1^2}{n_1} + \frac{s_2^2}{n_2}}
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. Measures variability in the sampling distribution of differences.
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