TD_ZTest Function Syntax | Teradata Vantage - TD_ZTest Syntax - Teradata® Database

SELECT * FROM TD_ZTest (
  ON { table | view | (query) }
  USING
  FirstSampleColumn (sample_column_1)
  [ FirstSampleVariance (variance_1) ]
  [ SecondSampleColumn (sample_column_2) ]
  [ SecondSampleVariance (variance_2) ]
  [ AlternativeHypothesis ({ 'upper-tailed' | 'lower-tailed' | 'two-tailed' }) ]
  [ MeanUnderH0 (mean_under_H0) ]
  [ Alpha (alpha) ]
) AS dt;