Question: From a random sample of 41 teens, it is found that on average they spend 31.8 hours each week online with a standard deviation of

From a random sample of 41 teens, it is found that on average they spend 31.8 hours each week online with a standard deviation of 3.65 hours. What is the 90% confidence interval for the amount of time they spend online each week?

(24.50, 39.10)

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