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

question 109

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. Which of the following is the correct hypotheses for a test about joint significance?

• A) H₀: β₀ = β₂ = 0; H_A: At least β₀ ≠ 0
• B) H₀: β₁ = β₂ = 0; H_A: At least one β_j ≠ 0
• C) H₀: β₀ = β₁ = β₂ = 0; H_A: All β_j ≠ 0
• D) H₀: β₁ = β₂ = 0; H_A: Both β_j ≠ 0

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Definitions:

Milgram Experiment

A psychological experiment conducted by Stanley Milgram in the 1960s to study obedience to authority, where participants were instructed to administer electric shocks to another person.

Stanford University Prison Experiment

A psychological study conducted by Philip Zimbardo in 1971 at Stanford University, where students were assigned roles of prisoners and guards to explore the effects of perceived power.

Generalization

Drawing a conclusion about a certain characteristic of a population based on a sample from it.

Logical Support

The provision of reasons or evidence to justify a claim or argument.