The Sampling Distribution Of $\bar { x } _ { 1 } - \bar { x } _ { 2 }$

question 138

True/False

The sampling distribution of $\bar { x } _ { 1 } - \bar { x } _ { 2 }$ is normal if the sampled populations are normal, and approximately normal if the populations are nonnormal and the sample sizes n₁ and n₂ are large.

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