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Content with tags T-SQL, statistics Rss

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Statistics in SQL: The Mann–Whitney U test

Phil Factor shows how to use the Mann-Whitney U test in SQL to to find out whether two samples come from the same distribution.  Read more...
By Additional Articles 2017/09/04 | Source: SimpleTalk | Category: t-sql
Rating:  Rate this |   Briefcase | 3,924 reads

Statistics in SQL: The Kruskal–Wallis Test

Before you report your conclusions about your data, have you checked whether your 'actionable' figures occurred by chance? The Kruskal-Wallis test is a safe way of determining whether samples come from the same population, because it is simple and doesn't rely on a normal distribution in the population. This allows you a measure of confidence that your results are 'significant'. Phil Factor explains how to do it.  Read more...
By Additional Articles 2017/07/27 | Source: SimpleTalk | Category: t-sql
Rating:  Rate this |   Briefcase | 5,507 reads
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