Residual Analysis Is Conducted to Check Whether Regression Assumptions Are

question 73

Multiple Choice

Residual analysis is conducted to check whether regression assumptions are met. Which of the following is not an assumption made in simple linear regression?

• A) Errors are independent of each other.
• B) Errors are normally distributed.
• C) Errors are linearly related to x.
• D) Errors have constant variance.

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Definitions:

Experiment

A methodical procedure carried out with the aim of verifying, falsifying, or establishing the validity of a hypothesis by manipulating variables to observe their effects.

Sample Point

An element of the sample space. A sample point represents an experimental outcome.

Statistical Experiments

Designed investigations that manipulate variables to observe effects and establish cause-and-effect relationships in data.

Outcome

The result or consequence of an experiment, action, or occurrence.