Answer
The five number summary does show the skew.
Work Step by Step
The minimum value of the data set was 230. However, the difference between Q3 and the median (328.5-319.5) is less than the difference between Q1 and the median (319.5-303.5). This would show that there is a larger group of data points between Q3 and the median. Thus, the five number summary does show the skew.