Significant again? A new reading program may reducethe number of elementary school students who readbelow grade level. The company that developed thisprogram supplied materials and teacher training for alarge-scale test involving nearly 8500 children in severaldifferent school districts. Statistical analysis of the resultsshowed that the percentage of students who did not meetthe grade-level goal was reduced from 15.9% to 15.1%.The hypothesis that the new reading program producedno improvement was rejected with a P-value of 0.023.a) Explain what the P-value means in this context.b) Even though this reading method has been shown tobe significantly better, why might you not recommendthat your local school adopt it?

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