If Two Random Samples, Each of Size 36, Are Selected $\bar { X } _ { 1 } - \bar { X } _ { 2 }$

question 22

True/False

If two random samples, each of size 36, are selected independently from two populations with variances of 42 and 50, then the standard error of the sampling distribution of the sample mean difference, $\bar { X } _ { 1 } - \bar { X } _ { 2 }$ , equals 2.5556.

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