Function Type: Compatibility


Returns the probability associated with a Student’s t-test. In Excel 2007, this is a Statistical function.

Function Structure:

=TTEST(array1, array2, tails, type).

Argument Breakdown:

array1 – The first data set.

array2 – The second data set (must have the same length as array1).

tails – The number of tails for the distribution. This must be either: 1 – Uses the one-tailed distribution; 2 – Uses the two-tailed distribution.

type – An integer that represents the type of t-test. This can be either: 1 – Paired T-Test; 2 -Two-sample equal variance T-Test; 3 – Two-sample unequal variance T-Test.


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