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The Mean Hours of Sleep That Students Get Per Night

Question 54

Multiple Choice

The mean hours of sleep that students get per night is 7 hours, the standard deviation of hours of sleep is 1.7 hours, and the distribution is approximately normal. Complete the following sentence. For about 95% of students, nightly amount of sleep is between ______.


A) 5.3 and 8.7 hrs
B) 5 and 9 hrs
C) 3.6 and 10.4 hrs
D) 1.9 and 12.1 hrs

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