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2 Sampling Dist. of xbar - Key Concepts (cum) [short]

# 2 Sampling Dist. of xbar - Key Concepts (cum) [short] - Dr...

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© 2009 by Harvey A. Singer 1 OM 210:  Statistical Analysis for  Management The Sampling Distribution of the Sample Mean Key Concepts (short) Dr. Harvey A. Singer School of Management George Mason University

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© 2009 by Harvey A. Singer 2 Sampling Distribution of the Sample Mean The sampling distribution of the sample mean is the probability distribution of all possible values of the sample mean resulting from completely sampling a population for all possible samples of the same size n . That is, the sampling distribution of the sample mean is a distribution of probability over all possible values of sample mean, calculated from all possible samples of the same number of observations drawn from the same population. Simply, it is the probability distribution of the sample means calculated for all possible samples.
© 2009 by Harvey A. Singer 3 First Big Result 1. The value expected of all possible sample means is the population mean. - The mean of the sample means of all possible samples is the population mean.

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2 Sampling Dist. of xbar - Key Concepts (cum) [short] - Dr...

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