Likelihood-ratio test for equality of two normal means
= Likelihood-ratio test for equality of two normal means
For independent unit-variance samples, testing equal means uses $Z=\sqrt{mn/(m+n)}(\bar X-\bar Y)$ and rejects for large $|Z|$.
= Likelihood-ratio test for equality of two normal means
For independent unit-variance samples, testing equal means uses $Z=\sqrt{mn/(m+n)}(\bar X-\bar Y)$ and rejects for large $|Z|$.