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More on regression

Inference about slope

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Introduction to inference about slope in linear regression

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Conditions for inference on slope

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Confidence interval for the slope of a regression line

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Calculating t statistic for slope of regression line

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Using a P-value to make conclusions in a test about slope

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Using a confidence interval to test slope

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Practice

Confidence interval for slopeGet 3 of 4 questions to level up!

Test statistic for slopeGet 3 of 4 questions to level up!

Making conclusions about slopeGet 3 of 4 questions to level up!

Transformations to achieve linearity

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Transforming nonlinear data

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Worked example of linear regression using transformed data

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About this unit

Learn how to perform inference on slope in least-squares regression. We'll make confidence intervals and do significance tests to see if a linear relationship in a sample suggests a relationship exists in the corresponding population.