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    Z-Scores, the Central Limit Theorem and areas under a Normal Curve

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    https://brainmass.com/statistics/probability/z-scores-the-central-limit-theorem-and-areas-under-a-normal-curve-587113

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    This paper answers questions about calculating z-scores from raw data values as well as figuring out what the raw data values must have been if you know what the z-scores are. It also deals with calculation of the standard error of a mean for various sample sizes and calculating certain areas under a normal, bell-shaped curve.

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