Before conducting inference for regression slope we need to check several assumptions be looking tat the residuals. Which of these is important? I. The residual plot should not have observable patterns. II. The residuals should have a fairly consistent vertical spread. III. The distribution of residuals should be approximately normal

Before conducting inference for regression slope we need to check several assumptions be looking tat the residuals. Which of these is important? I. The residual plot should not have observable patterns. II. The residuals should have a fairly consistent vertical spread. III. The distribution of residuals should be approximately normal

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.6: Regression And Median-fit Lines

Problem 17HP

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Question

Before conducting inference for regression slope we need to check several assumptions be looking tat the residuals. Which of these is important?

I. The residual plot should not have observable patterns.
II. The residuals should have a fairly consistent vertical spread.
III. The distribution of residuals should be approximately normal.

Expert Solution