School district (group 1) compared to the Beaverton School district (group 2). Assume the ations are normally distributed with unequal variances. A random sample of 26 Portland classes fo n of 33 students per class with a standard deviation of 6. A random sample of 25 Beaverton classe a mean of 36 students per class with a standard deviation of 2. 95% confidence interval in the difference of the means. Round answers to 4 decimal places. < με – μη <

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