The degree of freedom for paired t test

- The number of degree of freedom for paired t test based on an observation is
- The degree of freedom associated with paired t test
- The degree of freedom for paired t test based on n pairs of observations is
- The degree of freedom for paired t test based on and pairs of observation is
- Degree of freedom for paired sample t test
- Paired unpaired t test
- Paired t test and independent t test