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help with data points

excel formula

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#1 molbio1234



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Posted 23 July 2013 - 05:02 AM

If I have a set of 3 data points, 27, 26, 35 and another set of 3 data points: 26, 26, 27, what is the excel formula that tells me that in first set of data there is a discrepency (the 35 is an outlier).

#2 DRT



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Posted 24 July 2013 - 11:53 AM

You mean the delete key?Posted Image

There are a number of tests available for identifying outliers (or, more correctly, identifying when the population is non-normal). The simple ones can be easily performed in Excel with the t.test function.
But ignoring outliers is a dangerous route to go down and can easily start to look like falsifying data. Better to repeat the experiment to gather more data and tighten the parameter estimation.

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