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

question 107

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:

Medicaid Benefits

Government-provided health insurance that assists low-income individuals and families in covering medical expenses.

Food Stamp Benefits

Government-provided assistance to low-income individuals and families to purchase food.

Taxed

The imposition of financial charges or other levies on individuals or entities by governments to fund public spending and services.

Elderly Person

An individual who is significantly advanced in age, typically considered to be aged 65 years or older.