SOLUTION: Where can I find a z-score table that goes higher than 3 (or 4)? I'm trying to find z-score values for outliers. I have already searched on the Web, but cannot find tables that g
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Question 1065173: Where can I find a z-score table that goes higher than 3 (or 4)? I'm trying to find z-score values for outliers. I have already searched on the Web, but cannot find tables that go up to 10.
Thank you. Answer by rothauserc(4718) (Show Source):
You can put this solution on YOUR website! In a normal distribution anything 2.72 standard deviations(z-score) above Q3 or below Q1 are outliers.
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Note that Q1 is -0.68 from the mean and Q3 is +0.68 from the mean
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Another way to state this is anything 3.4 standard deviations above or below the mean is an outlier
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