Degrees of freedom for two-sample t-test
- Author:
- Kevin Frederick
- Topic:
- Statistics
The x-axis is the first group's sample size (n1).
The y-axis is the degrees of freedom (df).
Adjust the second group's sample size, and each groups standard deviation, using the sliders.
Key:
Blue: equal (pooled) variances;
Green: unequal variances; Satterthwaite formula
Red: unequal variances; smaller of or