6. Going back to the home sales data for Delta County, CO (see your Project 1 work) you want to see when the market peaked and where it seemed to return to its previous levels. You consider the average sale price for the County for different years.

a. Can you determine if the market peaked in 2007 or 2008? (Is there a difference between the averages prices in these two years?)

b. Can we conclude that in 2010 and 2011 that the market had returned to 2006 levels?

c. Did the market increase from 1995 to 2007? Are you sure?