Boxplots A and B show information about waiting times at a post office. Boxplot A is before a new queuing system is introduced and B is after it is introduced. Compare the waiting times of the old system with the new system. 10 Waiting time (minutes) 25 30 B 25 "Waiting time (minutes 20 30
Both Boxplots A and B have the same lower quaratile ranges well as the same median. However the old system had a larger upper quartile range,whilst the upper quaratile range of Box plot B was shorte.r
