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A data set of size n=15 is collected. The mean of the data set is 262.78...

A data set of size n=15 is collected. The mean of the data set is 262.78 and the standard deviation of the data is 6.13. Determine the z-score for the data value x= 285.91.

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Answer #1

The z score is calculated by subtracting mean from data value and then dividing by standard deviation.

Z score = 3.7732

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