Approximate mean of distribution 1:  
Approximate mean of distribution 2:  
Approximate r between the distributions:  
Approximate standard deviation of distributions:  
Sample size:  
Name of dependent variable:  
Name of level 1 of independent variable:  
Name of level 2 of independent variable:  
α:  
H_{0}:  μ_{1  2} ≤ 0 μ_{1  2} ≥ 0 μ_{1  2} = 0 
