If constitute a random sample from an infinite population with mean and variance , obtain and

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- January 7th 2009, 12:09 AMzorroRandom Sample
If constitute a random sample from an infinite population with mean and variance , obtain and

- January 7th 2009, 05:45 AMmr fantastic
You don't make it clear whether or not a derivation is required. So I will just refer you to a website that has the standard results which are the answers to your questions: Sampling distribution - Wikipedia, the free encyclopedia