A Researcher Studies the Relationship Between SAT Scores,the Test-Taker's Family

question 43

Multiple Choice

A researcher studies the relationship between SAT scores,the test-taker's family income,and his or her grade point average (GPA) .Data are collected from 24 students.He estimates the following model: SAT = β₀ + β₁ GPA + β₂ Income + ε.The following table summarizes a portion of the regression results. At the 5% significance level,which of the following explanatory variable(s) is(are) individually significant?

• A) Only Income.
• B) Both,GPA and Income.
• C) Only GPA.
• D) Neither GPA nor Income.

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Definitions:

Hispanic-Americans

Americans with ancestry from Spanish-speaking countries, especially those in Latin America.

African-Americans

A racial or ethnic group in the United States with ancestry from the black racial groups of Africa.

Native Americans

Indigenous peoples of the United States, including various tribes, who were the original inhabitants of the land prior to European colonization.

Genome

The complete set of genes or genetic material present in a cell or organism.