TTEST

This function returns the probability associated with a t-test.

TTEST(array1,array2,tails,type)

This function has these arguments:

Argument	Description
array1	Array of values in first data set
array2	Array of values in second data set
tails	Number of tails
type	Type of t-test to perform (1, 2, or 3)

Accepts numeric data for all arguments. Returns numeric data.

TTEST(A1:A17,B1:B17,4,3)

TTEST({2,2,2,3,4},{2,3,3,4,5},1,2)gives the result 0.126036

This function is available in product version 1.0 or later.