Box-And-Whiskers Plots for a Sample of Students and Their Number

Essay

Box-and-whiskers plots for a sample of students and their number of hours of sleep per night during the week are given below. (Data adapted from DataScope.)


A) Why is the one dot for a male student separate from the rest of the graph?
B) How many female students sleep more than 11 hours?
C) How many male students sleep between 10 and 10.75 hours?
D) Do any females sleep longer than all the males? Explain.
E) Give the interquartile range for the males.
F) Give the five-number summary for the females.
G) If the female and male data were put together, what would be the median number of hours of sleep? Explain how you know or why you can't tell.