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    Standard Deviation and Mean : Appication Word Problem - Phony Data?

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    For any data set of n values with standard deviation s, every value must be within s √n - 1 of the mean. A statistics teacher reports that the test scores in her class of 17 students had a mean of 75.0 and a standard deviation of 5.0. Kelly, the class's self-proclaimed best student, claims that she received a grade of 97. Could Kelly be telling the truth?

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    https://brainmass.com/math/algebra/standard-deviation-mean-phony-data-37329

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    Phony data? For any data set of n values with standard deviation s, every value must be within s √n - 1 of the mean. A statistics teacher reports that the test scores in her ...

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    Mean and standard deviation are applied to the validity of data. The solution is detailed and well presented.

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