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AP Statistics
Unit 6 – Proportions
Topic 6.8
When constructing a two-sample z-interval, what is the result if the standard error is small?
The confidence level decreases
The confidence interval becomes wider
The confidence interval becomes narrower
The sample size must be increased
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AP Statistics - 6.8 Confidence Intervals for the Difference of Two Proportions
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Two-sample z-interval
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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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