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AP Statistics
Unit 6 – Proportions
Topic 6.9
A student constructs a confidence interval for the difference in proportions and finds (0.05, 0.15). What can be concluded at the 90% confidence level?
There is strong evidence to support a difference in the proportions.
The student made a calculation error and should redo the interval.
The sample size was too small to make any inference.
There is no evidence to support a difference in the proportions.
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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
90% confidence level
Difference in Proportions
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About Fiveable
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Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
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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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