TTEST2UV

**Syntax:** **TTEST2UV( R1, R2)**

*R1* = a range

*R2* = a range

**TTEST2UV** returns the significance level (alpha) of the
two-sided dual population T-test for the population samples contained
in the ranges *R1* and *R2* without assuming that the
population variances are the same. Alpha is the probability of error
in rejecting the null hypothesis that mean[*R1*] = mean[*R2*],
assuming var[*R1*] and var[*R2*] are unrelated.

**Examples:**

**TTEST2UV**(A1..A4, B1..B4) = 0.71306706, where A1..A4 = .5,
.98, .22, .1, and B1..B4 = .87, .6, .21, .49.

**TTEST2UV**(H5..H9, K5..K9) = 0.0083561, where H5..H9 = 14,
35, 37, 0, 33, and K5..K9 = 67, 77, 94, 34, 99.

**Excel function:** *N/A*

Grey Trout Software

02 March 2003