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ISA 225 – Exam 2 Cram Kit (Leonard)

Exam 2 Cram Kit
44 min

Unlock Exam Kit ($33.33)

Scatterplots 3 min 3 Concepts Sample Module

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Correlation (r) 1:22

Line of Best Fit 0:33

Simple Linear Regression 6 min 5 Concepts

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What is simple linear regression? 2:00

Y-intercept 0:42

Coefficients 0:52

Assumptions for Linear Regression 1:03

Extrapolation 0:41

Analysis of Variance (ANOVA) 8 min 6 Concepts

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Degrees of freedom (regression) 0:57

Sum of Squares Error (SSE) 1:22

Sum of Squares Regression (SSR) 1:33

Sum of Squares Total (SST) 1:23

Mean Square Error (MSE) 1:24

Summary of Fit 7 min 3 Concepts

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R-squared (Coefficient of Determination) 3:37

Adjusted R-squared 1:37

Root Mean Square Error (RMSE) 1:20

Parameter Estimates 2 min 1 Concept

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Multiple LInear Regression (Leonard) 3 min 2 Concepts

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What is multiple linear regression? 1:47

How to compare models 0:48

Confidence Intervals (Part 2) 6 min 3 Concepts

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Why use confidence intervals with linear regression? 0:31

Confidence intervals with coefficient 2:06

Confidence intervals with predicted mean response 3:06

Prediction Intervals 4 min 2 Concepts

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Prediction vs. confidence 0:32

Prediction interval with individual observation 2:49

Hypothesis Tests (Part 2) 5 min 2 Concepts

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Hypothesis test with coefficient 2:16

Hypothesis test with entire model 1:54

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