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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?
The data collection method was flawed, leading to unreliable results.
There is no evidence to support a difference in the proportions.
The sample size was too small to make any inference.
The proportion of one group is significantly higher than the proportion of the other group.
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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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