Answer
Q1 = 101, Q3 = 108.75.
See boxplot below.
We see that the median is roughly in the center of the box plot and the left and right lines are similar in length. From the boxplot and quartiles, we can confirm that the shape of the distribution is symmetric.
Work Step by Step
In Minitab, from the stats menu, select basic statistics and then display descriptive statistics. From the graphs dialog box, select boxplot.