Doris Xin created SPARK-3077:
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             Summary: ChiSqTest bugs
                 Key: SPARK-3077
                 URL: https://issues.apache.org/jira/browse/SPARK-3077
             Project: Spark
          Issue Type: Bug
          Components: MLlib
            Reporter: Doris Xin


- promote nullHypothesis field in ChiSqTestResult to TestResult. Every test 
should have a null hypothesis
- Correct null hypothesis statement for independence test
- line 59 in TestResult: 0.05 -> 0.5



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