thanks I will look at the link
"Jon Peltier" wrote:
You have to calculate the standard deviation of your data in the worksheet.
Then you can add a pair of lines for mean ± sd to your chart. See this link:
http://peltiertech.com/Excel/Charts/RunChtLines.html
- Jon
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Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
Peltier Technical Services, Inc. - http://PeltierTech.com
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"patiencescientist" wrote in
message ...
I probably asked the question wrong. I am to find standard deviation and
plot
it using standard deviation 3x sorry if I am not stating more clearner.
"Bernard Liengme" wrote:
Did you try my earlier suggestion?
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Bernard V Liengme
Microsoft Excel MVP
http://people.stfx.ca/bliengme
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"patiencescientist" wrote
in
message ...
how do I put multiple standard deviation on a control chart?