Coaching and SAT scores: critique. The data you used in the previous twoproblems came
Chapter 0, Problem 19.44(choose chapter or problem)
Coaching and SAT scores: critique. The data you used in the previous twoproblems came from a random sample of students who took the SAT twice. Theresponse rate was 63%, which is pretty good for nongovernment surveys, so letsaccept that the respondents do represent all students who took the exam twice.
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