I need you to show work

6. (Show your Work!) Ajournal published a study of the lifestyles of Temple students. The students kept track of several variables, including number of hours of sleep obtained in a typical day. These Temple students had a mean of 8.29 hours and a standard deviation of 2.13 hours of sleep. Assume that the distribution of the number of hours of sleep for this group of students is approximately normal. Complete parts a. and c. using the appropriate probability table. (Round to four decimal places as needed) a. What is the probability of randomly selecting a student who sleeps between 9.5 - 11.5 hours? b. Find the hours of sleep that will be exceeded by 70% of the students c. What is the probability of randomly selecting a student who sleeps between 5 - 8 hours