Advanced Insights: Z-Score Threshold Questions
(Doc ID 2651689.1)
Last updated on DECEMBER 24, 2020
Applies to:Oracle DataFox Cloud Service - Version N/A and later
Information in this document applies to any platform.
1. Why is does the threshold for a Z-score turn green >= +5?
The green coloring means it is statistically significant.
Z-scores > +3 or < -3 are usually extremely rare on a normal distribution curve.
Thus, 5 seems too high.
99% of Z-scores are <= +3 or >= -3 standard deviations from the mean.
2. How is it possible for an attribute to have a Z-score that is 382.65?
Usually on a normal distribution curve Z-scores are <= +3 or >= -3.
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