The Expected Value of the Sampling Distribution Of $\bar { X } _ { 1 } - \bar { X } _ { 2 }$

question 90

True/False

The expected value of the sampling distribution of $\bar { X } _ { 1 } - \bar { X } _ { 2 }$ is $\mu _ { \bar { x } _ { 1 } - \bar { x } _ { 2 } } = \mu _ { 1 } - \mu _ { 2 }$ where $\mu$ _i is the mean of population i (i = 1,2).

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