Homework Clinic
Mathematics Clinic => Statistics => Topic started by: Yolanda on Apr 14, 2020
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Many universities use ACT test scores as one criterion for admission. Admission counselors believe that the deterministic part of a regression model predicting college GPA at the end of the first year from the ACT score is a straight line. What factors might contribute to the random component? In other words, why might a student's end of year GPA not fall exactly on this line?
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Answers will vary, but possible answers could include (1) some students are poor test takers and thus the ACT may not accurately reflect the student's actual ability and (2) the student may have taken courses in his first year that did not interest him so his GPA may not reflect his ability.
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Thank you!