A journal published a study of the lifestyles of visually impaired students. Using diaries, the students kept

Question:

A journal published a study of the lifestyles of visually impaired students. Using diaries, the students kept track of several variables, including number of hours of sleep obtained in a typical day. These visually impaired students had a mean of 9.92 hours and a standard deviation of 2.11 hours. Assume that the of the number of hours of sleep for this group of students is approximately normal. Complete parts a through c.
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...