# Independent Samples T-Test - Unequal Variance

From Q

Where and are the two means and and are their Standard Deviations, the test statistic is:

,

where:

- ,
- ,
- is the sample size.

From Q

Where and are the two means and and are their Standard Deviations, the test statistic is:

,

where:

- ,
- ,
- is the sample size.