Relevant

Conditions 
Relevant

Equation 
Variances of

Population is

Fdistribution 

Means of 2

Two samples are

Studentt 

Means of 2

Either is known,

Standard


Means of 2

n_{1} and n_{2} less

Studentt 

Means of 2

n_{1} and n_{2} less

Studentt 
