I have built a chart from a simple spreadsheet of data.  Here is an example
of the data:

Group1     13.77
Group2     15.86
Group3     12.11

I want the chart (bar style) to show each bar in Blue that corresponds to a
value greater than 13.  All other bars (<13) should be red.  

Is that possible?

Also, I want to draw a line across the chart at 13 to show the "benchmark".