The standard error of $\bar { x } _ { 1 } - \bar { x } _ { 2 }$ is the _____.
A) variance 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) difference between the two means

Question

Quizplus · Accepted Answer

The standard error of $\bar { x } _ { 1 } - \bar { x } _ { 2 }$ is defined as the standard deviation of the sampling distribution of the difference between two sample means, which matches choice C.

The Standard Error Of xˉ1−xˉ2\bar { x } _ { 1 } - \bar { x } _ { 2 }xˉ1​−xˉ2​

The Standard Error Of $\bar { x } _ { 1 } - \bar { x } _ { 2 }$