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What is the likelihood that the change in the sample mean

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On the SAT-Mathematics test, these students had a mean change in score of +19 points, with a standard deviation of 65 points. In a random sample of 100 students who pay a private tutor to help them improve their results, what is the likelihood that the change in the sample mean score is less than 10 points?

Reference no: EM132159011

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