To test for an outlier
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1    Choose Stat > Basic Statistics > Outlier Test.

3    In Variables, enter one or more columns of sample data.

4    If you suspect that a specific value is an outlier, then do the following:

1    Click Options.

2    In What do you want to determine, choose either  Smallest data value is an outlier or Largest data value is an outlier.

3    Click OK.

5    Click OK.