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QUESTION 3 - Does more extensive feedback on homework improve test scores? Stefan is interested in estimating the impact of the hard work he put

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QUESTION 3 - Does more extensive feedback on homework improve test scores? Stefan is interested in estimating the impact of the hard work he put into grading problem sets on exam scores to find out whether the benefit to the students is worth the cost. (a) What would be the ideal experiment? What are some reasons why we might not be able to conduct the ideal experiment? (5 points)

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