standard deviation plotting

P

patiencescientist

how do I plot multiple standard deviation on a control chart?
Frist I am to find standard deviation and plot it I guess the range is 3x
the standard deviaton (using Excel 2003)
 
W

Wigi

You could use (Y) error bars and specify in which cells Excel can find them.

Rightclick the series and choose Format data series...
 

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