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Difference between the two population means

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Reference no: EM131191016

Suppose that x is a normally distributed variable on each of two populations.

Independent samples of sizes n1 and n2, respectively are selected from the two populations. To which of the following is the mean of all possible differences between the two sample means equal to?

Sum of the two samples, The difference between the two population means, The difference between the two sample means, or The sum of the two population means? Please explain your answer.

Reference no: EM131191016

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