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Introduction to Econometrics 3rd Edition by James Stock, Mark Watson
Edition 3ISBN: 978-9352863501Introduction to Econometrics 3rd Edition by James Stock, Mark Watson
Edition 3ISBN: 978-9352863501 Exercise 20
Suppose that a state offered voluntary standardized tests to all its third graders and that these data were used in a study of class size on student performance. Explain how sample selection bias might invalidate the results.
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The idea of having a voluntary test mean...
Introduction to Econometrics 3rd Edition by James Stock, Mark Watson
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