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AP Statistics›Unit 4: Inference for Quantitative Data: Means›Inference for Quantitative Data: Means

Sampling Distributions for Means

Sample means vary less than individual values (σ/√n) and are approximately normal for large samples.

Standard error of x̄
Central Limit Theorem for means
Difference of two means

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4Inference for Quantitative Data: Means

Sampling Distributions for Means
t-Intervals and t-Tests for a Mean
Two-Sample and Paired t-Procedures

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t-Intervals and t-Tests for a Mean

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Also called: sampling distribution of the mean