Question: solve In the regression model test_score = 8) + 8; (study_hours) + 82(tutor) + 83(study_hours x tutor) + , what does it mean if 33

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In the regression model test_score = 8) + 8; (study_hours) + 82(tutor) + 83(study_hours x tutor) + , what does it mean if 33 is positive and significant? Having a tutor decreases the effectiveness of study hours on test scores. Study hours have no impact on test scores. Having a tutor increases the effectiveness of study hours on test scores. Tutors have no impact on the effectiveness of study hours

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