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(In relation to situation number 1) School A is selected because its students have the poorest math scores in the city. Overall, School B's students
(In relation to situation number 1) School A is selected because its students have the poorest math scores in the city. Overall, School B's students are average in math performance. Identify the major internal validity threat created by the situation
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Essentials of Business Analytics
Authors: Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
2nd edition
1305627733, 978-1305861817, 1305861817, 978-0357688960, 978-1305627734
