In the 2002-2003 academic year, many public universities in the United States raised tuition and fees due to a decrease in state subsidies.The change in the cost of tuition, a shared dormitory room, and the most popular meal plan from the 2001-2002 academic year for a sample of 10 public universities were as follows: $1589, $593, $1223, $869, $423, $1720, $708, $1425, $922 and $308. (20 points)

1) What is the mean and median change in the cost? (6 points)

2) What are the five key number summary of the change in the cost? (8 points)

3) What is the standard deviation of the change in the cost? (6 points)