The mean of the difference $\bar { X } _ { 1 } - \bar { X } _ { 2 }$ is equal to the mean of the difference $\bar { X } _ { 2 } - \bar { X } _ { 1 }$ .

Name: The mean of the difference $\bar { X } _ { 1 } - \bar { X } _ { 2 }$ is equal to the mean of the difference $\bar { X } _ { 2 } - \bar { X } _ { 1 }$ .
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Question

Quizplus · Accepted Answer

The mean of the difference $\bar { X } _ { 1 } - \bar { X } _ { 2 }$ is the negative of the mean of the difference $\bar { X } _ { 2 } - \bar { X } _ { 1 }$, not equal.

The Mean of the Difference Xˉ1−Xˉ2\bar { X } _ { 1 } - \bar { X } _ { 2 }Xˉ1​−Xˉ2​

The Mean of the Difference $\bar { X } _ { 1 } - \bar { X } _ { 2 }$