array1,array2,tails,type!This function is available for compatibility with Excel 2007 and earlier. Returns the probability ...

!array1,array2,tails,type!!This function is available for compatibility with Excel 2007 and earlier.
Returns the probability associated with a Student's t-Test!is the first data set!is the second data set!specifies the number of distribution tails to return: one-tailed distribution = 1; two-tailed distribution = 2!is the kind of t-test: paired = 1, two-sample equal variance (homoscedastic) = 2, two-sample unequal variance = 3!