Question: (1 point) Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many

(1 point) Using diaries for many weeks, a study on the lifestyles

(1 point) Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers found that visually impaired students averaged 8.49 hours of sleep, with a standard deviation of 2.19 hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed. (a) What is the probability that a visually impaired student gets less than 6.3 hours of sleep? answer: .1586 (b) What is the probability that a visually impaired student gets between 6.5 and 8.81 hours of sleep? answer:

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