AP®︎ Statistics (pre-2026): Topic 6.6 Flashcards

Master key terms and definitions for Topic 6.6 of AP Statistics (pre-2026) – Concluding a Test for a Population Proportion to help you prep for quizzes and the AP exam.

This course has been archived. The College Board updated AP Statistics for the 2026–27 school year, and the units and topics changed.
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Term

Significance Level (Alpha, α)

Definition

The predetermined probability of rejecting a true null hypothesis.

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Significance Level (Alpha, α)
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The predetermined probability of rejecting a true null hypothesis.

DAT-3.BDAT-3.B.1
Reject vs. Fail to Reject
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Reject means sufficient evidence for Ha; fail to reject means insufficient evidence for Ha.

DAT-3.BDAT-3.B.3
Why You Never Accept the Null Hypothesis
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Not rejecting H0 does not prove it true; it only shows weak evidence against it.

DAT-3.BDAT-3.B.5
Small vs. Large P-Values
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Small values give stronger evidence for Ha; larger values do not support Ha or prove H0.

DAT-3.BDAT-3.B.6
Using a Z-Score to Conclude a Test
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Large positive or negative z-values correspond to small p-values and possible rejection of H0.

DAT-3.B
Decision Rule and Statistical Significance
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If the p-value is at most α, reject H0 as statistically significant; otherwise fail to reject.

DAT-3.BDAT-3.B.2
Conclusion in Context
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State the decision and whether there is evidence for the population proportion claim in context.

DAT-3.BDAT-3.B.4
P-Value
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The probability, assuming H0 is true, of getting the observed result or more extreme.

DAT-3.B