Chapter 2, Problem 20P

According to the National Education Association (NEA), teachers generally spend more than 40 hours each week working on instructional duties. The following data show the number of hours worked per week for a sample of 13 high school science teachers and a sample of 11 high school English teachers.

High school science teachers 53 56 54 54 55 58 49 61 54 54 52 53 54

High school English teachers 52 47 50 46 47 48 49 46 55 44 47

1. a. What is the median number of hours worked per week for the sample of 13 high school science teachers?
2. b. What is the median number of hours worked per week for the sample of 11 high school English teachers?
3. c. Create a box plot for the number of hours worked for high school science teachers.
4. d. Create a box plot for the number of hours worked for high school English teachers.
5. e. Comment on the differences between the box plots for science and English teachers.