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Example of a z-score for statistics students

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Explain the difference between a positive z-score and a negative z-score. If you can give me an example that would be awesome. Thank you.

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Solution Summary

An explanation of the z-score statistic and its uses. This response includes an original example to provide complete understanding of the topic.

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A z-score describes how many standard deviations a specific piece of data is from the mean. The data set must be considered normal (have a symmetrical bell shape) in order to use the z-score statistic. For example, if a certain piece of data has a z-score of 1.4, this indicates that the data ...

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