T.TEST(array1, array2, tails, type)
Returns the probability associated with a t test.
|array1||The first array,|
|array2||The second array.|
|tails||The number of distribution tails:|
1 = one-tailed distribution
2 = two-tailed distribution
|type||The kind of t-Test to perform:|
1 = paired
2 = two sample equal variance (homoscedastic)
3 = two sample unequal variance (heteroscedastic)
|* Added in Excel 2010.|
* This function replaces the TTEST function.
* For the Microsoft documentation refer to support.office.com
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