Using the conservative degrees of freedom find the critical

Using the conservative degrees of freedom, find the critical value for testing Ho: mu1-mu2 = 0 versus Ha: mu1-mu2>0 at significance level 0.05 for samples of size 11 and 29. Round your final answer to three decimal places.

Solution

If the equation is to conduct Z-test
Critical Value
The Value of |Z | at LOS 0.05% is 1.645

If the equation is to conduct t-test
Critical Value
The Value of |t | with Min (n1-1, n2-1) i.e 10 d.f is 1.812