The standard error of $\bar { x } _ { 1 }$

Question

The standard error of $\bar { x } _ { 1 }$ - $\bar { x } _ { 2 }$ is the
A) pooled estimator of $\bar { x } _ { 1 }$ - $\bar { x } _ { 2 }$ .
B) variance of the sampling distribution of $\bar { x } _ { 1 }$ - $\bar { x } _ { 2 }$ .
C) standard deviation of the sampling distribution of $$\bar { x } _ { 1 }$$ - $\bar { x } _ { 2 }$ .
D) margin of error of $\bar { x } _ { 1 }$ - $\bar { x } _ { 2 }$ .

Quizplus · Accepted Answer

The standard error is the standard deviation of the sampling distribution of the difference between two sample means.

The Standard Error Of xˉ1\bar { x } _ { 1 }xˉ1​