Function Type: Compatibility
Description:
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.
Example:
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