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AP Statistics
Unit 6 – Proportions
Topic 6.9
A student constructed a confidence interval for the difference in proportions and found (-0.02, 0.08). What can they conclude at the 95% confidence level?
There is strong evidence that the two population proportions are different.
The sample sizes were too small to make any inference.
The difference in population proportions is exactly 0.
There is a reasonable level of uncertainty about whether the two population proportions are different.
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AP Statistics - 6.9 Justifying a Claim Based on a Confidence Interval for a Difference of Population Proportions
Key terms
Confidence Interval
95% Confidence Level
Difference in Proportions
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Cram Mode
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© 2024 Fiveable Inc. All rights reserved.
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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