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null hypothesis

   Also found in: Dictionary/thesaurus, Medical, Legal, Acronyms, Wikipedia 0.01 sec.
null hypothesis [′nəl hī′päth·ə·səs]
(statistics)
The hypothesis that there is no validity to the specific claim that two variations (treatments) of the same thing can be distinguished by a specific procedure.


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The null hypothesis in each of the three tests is: H1: Final grades assigned by adjunct faculty do not differ significantly from grades assigned by full-time faculty teaching the same course We are concerned also with the quality of adjunct teaching versus full-time faculty teaching.
The Kurtosis and Skewness statistics indicate that index returns series are leptokurtic and have an asymmetric distribution that rejects significantly the null hypothesis of normality for all the index returns series.
However, the null hypothesis that r=1 is rejected at the 1% level, the alternative hypothesis being r > 1.
 
 
 
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