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Achieving a high score on the LSAT examination is a prerequisite for getting accepted to law...

Achieving a high score on the LSAT examination is a prerequisite for getting accepted to law school. A random sample of 15 students from law school 1 had an average LSAT score of 680 with a standard deviation of 84. A random sample of 12 students from law school 2 had an average LSAT score of 634 with a standard deviation of 92. Making appropriate assumptions, find a 90% confidence interval for the difference between mean LSAT scores at these two schools.

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