A researcher has obtained the number of hours worked per week during the summer for a sample of fifteen students.
40 , 24 , 35 , 31, 20 , 40 , 30 , 26 , 42 , 10, 30 , 20 , 12, 5, 18
Using this data set Identify the
- 5 number summary and show the box plot
- Compute the interquartile range