Why Might You Wish to Include Covariates in an ANOVA

question 3

Multiple Choice

Why might you wish to include covariates in an ANOVA? (You may select more than one option.)

• A) To reduce within-group error variance.
• B) To eliminate confounds in the results.
• C) To reduce between-group error variance.
• D) When the assumption of homogeneity of variance is violated.

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Definitions:

Service-sponsored Retail System

A retail network established by a service provider to sell or distribute its services directly to consumers.

Administered Cooperative System

A system where a central agency coordinates the activities of a group of cooperative entities, ensuring efficiency and uniformity in operations.

Franchising

A business practice in which a company allows another operator to trade under its brand in return for a fee or license.

Parent Company

A corporation that owns enough voting stock in another firm to control management and operations by influencing or electing its board of directors.