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AP Statistics Flashcards: Concluding Tests Population Proportion

Study Concluding Tests Population Proportion in AP Statistics with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Identify the decision if zz-score is 2.5 in a right-tailed test at 0.05 significance.

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ANSWER

Reject H0H_0. Z-score (2.5) exceeds critical value (1.645) for right tail.

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AP Statistics: Inference for Categorical Data: Proportions

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What this deck covers

This deck focuses on Concluding Tests Population Proportion, giving you a quick way to review the definitions, rules, and examples that matter most for AP Statistics.

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Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set
A state agency wants to determine whether fewer than 15% of registered voters in the state are unaffiliated with any political party. In a random sample of 800 registered voters, 103 were unaffiliated. A one-sample zz test for a population proportion was performed with H0:p=0.15H_0: p=0.15 and Ha:p<0.15H_a: p<0.15 at α=0.05\alpha=0.05. The pp-value was 0.041, so the agency rejected H0H_0. Which conclusion is appropriate?
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