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AP Statistics Flashcards: Difference Of Two Population Proportions Test

Study Difference Of Two Population Proportions Test in AP Statistics with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What is the critical value for a one-tailed test at 5% significance level?

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ANSWER

Approximately 1.6451.645 or −1.645-1.645. One-tailed critical values at 5% significance level.

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AP Statistics: Inference for Categorical Data: Proportions

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This deck focuses on Difference Of Two Population Proportions Test, giving you a quick way to review the definitions, rules, and examples that matter most for AP Statistics.

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Practice questions

1 of 39Practice questions for this set
A public health researcher wants to know whether the proportion of adults who received a flu shot differs between City 1 and City 2. In a random sample of 250 adults from City 1, 145 reported getting a flu shot. In a random sample of 220 adults from City 2, 110 reported getting a flu shot. A two-proportion zz test was conducted for H0:p1=p2H_0: p_1=p_2 versus Ha:p1≠p2H_a: p_1\ne p_2, yielding a p-value of 0.018. Using α=0.05\alpha=0.05, what conclusion is appropriate?
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