AP Statistics

Unit 9: Inference for Quantitative Data: Slopes

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AP Statistics

Unit 9: Inference for Quantitative Data: Slopes

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Confidence intervals and significance tests for the slope of a population regression line.

Key formula

t = \frac{b - \beta_0}{SE_b}, \quad df = n - 2

What this unit covers

Conditions for regression inference
Confidence interval for a slope
Test for a slope
Reading computer regression output

Other units in AP Statistics

Unit 1: Exploring One-Variable Data
Unit 2: Exploring Two-Variable Data
Unit 3: Collecting Data
Unit 4: Probability, Random Variables, and Probability Distributions
Unit 5: Sampling Distributions
Unit 6: Inference for Categorical Data: Proportions
Unit 7: Inference for Quantitative Data: Means
Unit 8: Inference for Categorical Data: Chi-Square