Suppose That X Is a Normally Distributed Variable on Each

question 31

Multiple Choice

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. The mean of all possible
Differences between the two sample means is equal to which of the following?

• A)The sum of the two sample means
• B)The difference between the two sample means
• C)The sum of the two population means
• D)The difference between the two population means

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