Answer:
To determine the median waiting time from a box plot, locate the line inside the box (the median line). This line represents the median waiting time. If the box plot doesn't have a line, identify the middle value of the box (the second quartile, Q2), which also corresponds to the median.
If you provide the box plot or the values of the quartiles (Q1, Q2, Q3), I can assist you in finding the median waiting time.