In a Regression Model, If Variance of the Dependent Variable

question 21

Multiple Choice

In a regression model, if variance of the dependent variable, y, conditional on an explanatory variable, x, or Var(y|x) , is not constant, _____.

• A)the t statistics are invalid and confidence intervals are valid for small sample sizes
• B)the t statistics are valid and confidence intervals are invalid for small sample sizes
• C)the t statistics and the confidence intervals are valid no matter how large the sample size is
• D)the t statistics and the confidence intervals are both invalid no matter how large the sample size is

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Definitions:

Eating Disorders

Mental disorders characterized by abnormal or disturbed eating habits that negatively impact health and daily functioning.

Autism

A disorder that appears in childhood and is marked by deficient communication, social interaction, and understanding of others’ states of mind.

Antisocial Personality Disorders

A type of chronic mental condition in which a person's way of thinking, perceiving situations and relating to others is dysfunctional and destructive.

Social Roles

Expectations for individuals based on their position or status within a group or society.