The t-Distribution for the Difference of Two Means (4/1)

$\mu1-\mu2$

We write as: $\mu1-\mu2=0$

Ho: $\mu1-\mu2=0$

Ha: $\mu1-\mu2\ne0$

Conditions:

Both samples are approximately normal ( n1 $\ge30$ , n2 $\ge30$ )

Independent: Random, < 10% of population

Independent observations between samples: The 2 samples are not related