Question: 10.18 Small classes In school. The Tennessee STAR ex periment randomly assigned children to regular or small classes during their first four years of school.

10.18 Small classes In school. The Tennessee STAR ex periment randomly assigned children to regular or small classes during their first four years of school. When these children reached high school, 40.2% of blacks from small classes took the ACT or SAT college entrance exams. Only 31.7% of blacks from regular classes took one of these exams. Is each of the boldface numbers a parameter or a statistic? Explain your answer.

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