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AP Statistics
Unit 6 – Proportions
Topic 6.9
A researcher constructs a confidence interval for the difference in proportions and finds (-0.01, 0.09). What can be concluded at the 95% confidence level?
There is no evidence to support a difference in the proportions.
The proportion of one group is significantly higher than the proportion of the other group.
The sample size was too small to make any inference.
The data collection method was flawed, leading to unreliable results.
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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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About Fiveable
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Cram Mode
AP Score Calculators
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Crisis Text Line
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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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