For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 27 students, and the distribution of total study hours per week is...

Can you write out all the steps I’m completely confused by this question


Extracted text: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 27 students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 3.5.hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week. b) 95% of the students spend between hours and hours on Statistics each week. c) 99.7% of the students spend between hours and hours on Statistics each week. Question Help: E Written Example Message instructor Submit Question Jump to Answer MacBook Air 888 DII F2 F3 F4 F5 # 3 $ & 2 4 5 6 7 9 W E T Y S F G K C V B M * C0