How do I introduce error bars in my excel graphs(bar chart)?

Question

I'm doing statiscal analysis of data in triplicate and I need 2 introduce error bars. Just aint too good with excel....HELP!!!

Answer 1

Here is a link to a document that clearly explains the case:
http://www.uvm.edu/~jleonard/AGRI85/spring2004/Standard_Error_Bars_in_Excel.html

Answer 2

If you just double-click on the bars in the chart, the "Format Data Series" dialog box will come up; "Y Error Bars" is one of the tabs.