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If Two Random Samples of Sizes N1 and N2 Are

Question 3

Multiple Choice

If two random samples of sizes n1 and n2 are selected independently from two non-normally distributed populations, then the sampling distribution of the sample mean difference, If two random samples of sizes n<sub>1</sub> and n<sub>2</sub> are selected independently from two non-normally distributed populations, then the sampling distribution of the sample mean difference, , is A) always non-normal B) always normal C) approximately normal only if n<sub>1</sub> and n<sub>2</sub> are both larger than or equal to 30 D) approximately normal regardless of n<sub>1</sub> and n<sub>2</sub> , is


A) always non-normal
B) always normal
C) approximately normal only if n1 and n2 are both larger than or equal to 30
D) approximately normal regardless of n1 and n2

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