A study shows in a certain school that the average number of hours a student answers his/her module in a day is 26.8 hours with a standard deviation of 5.57. Assuming that the data are normally...

A study shows in a certain school that the average number of hours a student answers his/her module in a day is 26.8 hours with a standard deviation of 5.57. Assuming that the data are normally distributed. If there were 2,780 students in that school, how many students spent between 15 and 41 hours in answering his/her modules. With a Normal Curve Distribution representation.