Q:

Graphing mean and standard deviation

I have measurements for multiple devices, and have their mean and sd values. I would like to produce a chart that would show these values, and I think the best would be if I could have something that looks like a bar chart(-ish) - the device names in x axis, values in y axis, and for each device to have a 'floating' bar that would represent values (mean - sd :: mean + sd), and some marker in the middle to show the actual mean value. is it doable? or would you suggest some other chart? 
Thanks a lot

A:

I think you're looking for a box-and-whisker plot.
Here are instructions to create them in Excel:

edit: Box plot and whisker plots in Excel 2007 (most detailed steps and best looking output)
Boxplots in Excel
How to create a BoxPlot/Box and Whisker Chart in Excel
There are probably 3rd party tools to help, too. 

Usually the median, quartile, and extreme values are used; but you could use mean and standard deviation(s).

