Answer to Question #74156 in Statistics and Probability for Cory

Question #74156
According to the Sleep Foundation, the average night's sleep is 7.6 hours. Assume the standard deviation is .6 hours and that the probability distribution is normal.

a) What is the probability that a randomly selected person sleeps more than 8 hours?

b) What is the probability that a randomly selected person sleeps 6 hours or less?

c)Doctors suggest getting between 7 and 9 hours of sleep each night. What percentage of the population gets this much sleep?
1
Expert's answer
2018-03-02T14:00:08-0500
The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/mathematics-answer-74156.pdf

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