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If Two Random Samples of Sizes N1 and N2 Are

Question 142

Multiple Choice

If two random samples of sizes n1 and n2 are selected independently from two populations with means μ1 and μ2,then the mean of If two random samples of sizes n<sub>1</sub> and n<sub>2</sub> are selected independently from two populations with means μ<sub>1</sub> and μ<sub>2</sub>,then the mean of equals: A) μ<sub>1</sub> + μ<sub>2</sub> B) μ<sub>1</sub> − μ<sub>2</sub> C) μ<sub>1</sub> / μ<sub>2</sub> D) μ<sub>1</sub> �μ<sub>2</sub> equals:


A) μ1 + μ2
B) μ1 − μ2
C) μ1 / μ2
D) μ1 μ2

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