array1,array2,tails,type!Returns the probability associated with a Student's t-Test!is the first data set!is the second data ...

!array1,array2,tails,type!!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!