The recommended number of hours of sleep per night is 8 hours, but evrrybidy "knows" that the average college student...

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The recommended number of hours of sleep per night is 8 hours, but evrrybidy "knows" that the average college student sleeps less than 7 hours. The number of hours slept last night by 10 randomly selected students. Use a 95 % confidence level to test the claim that the average college student sleep less than 7 hours

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