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In a sample of 8 high school students, they spent an average of 25.8 hours each week doing sports with a standard deviation of 3.2

In a sample of 8 high school students, they spent an average of 25.8 hours each week doing sports with a standard deviation of 3.2 hours. Find the 95% confidence interval.

(23.15, 28.50)

(19.40, 32.20)

(23.12, 28.48)

(22.60, 29.00)

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