Solve all of the following questions please?

Question 3 0/3 pts 9 3 99 @ Details For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 25 students, and the distribution of total study hours per week is bell-shaped with a mean of 12 hours and a standard deviation of 2.5 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: Written Example )Message instructor Submit Question Jump to AnswerFor a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 20 students, and the distribution of total study hours per week is bell-shaped with a mean of 14 hours and a standard deviation of 2.6 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between C] hours and Cl hours on Statistics each week. b) 95% of the students spend between C] hours and |:] hours on Statistics each week. c) 99.7% of the students spend between C] hours and Cl hours on Statistics each week. Table Text Shape Media Comment 8 ACTIVITY Activity . Answer the following questions: . What do you think is the major difference between descriptive and inferential statistics? . Provide an example that utilizes both descriptive statistics and inferential statistics Chapter 13 - Nuts and Bolts of Quasi-Experiments LO