23:27

AP Statistics 2020 Review: Choosing Hypothesis Tests

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Introduction to power in significance tests | AP Statistics | Khan Academy

18:06

AP Statistics: t-test for a Mean Difference (Paired)

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Example calculating t statistic for a test about a mean | AP Statistics | Khan Academy

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Confidence interval for a mean with paired data | AP Statistics | Khan Academy

18:36

Hypothesis Testing - Difference of Two Means - Student's -Distribution & Normal Distribution

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Calculating a z statistic in a test about a proportion | AP Statistics | Khan Academy

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P-values and significance tests | AP Statistics | Khan Academy