Hi can someone please help:

Here is the data 10, 13, 15, 15, 20, 20, 25, 25, 25, 26, 30, 31, 34, 35, 35, 35, 44, 45, 50, 80

I need to determine the median, 1st and 3rd quartile and the Interquartile range.

If possible, please construct a box plot and describe skewness