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A new math program may reduce the number of elementary students who perform below their grade level.The company that developed this program supplied materials and teacher training to 3000 children and 400 teachers.Statistical analysis of the results showed that the percentage of students who did not attain the grade level standard was reduced from 24.3% to 18.5%.The hypothesis that the new reading program did not produce improvement was rejected with a P-value of 0.047.
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