[Solution Library] During the last week of the semester, students at a certain college spend on the average 4.4 hours using the school's computer terminals
Question: During the last week of the semester, students at a certain college spend on the average 4.4 hours using the school's computer terminals with a standard deviation of 1.8 hours. For a random sample of 36 students at the college, find the probabilities that the average time spent using the computer terminal during the last week of the semester is
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At least 4.8 hours;
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Between 4.1 and 4.5 hours.
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