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- Null_hypothesis abstract "In statistical inference of observed data of a scientific experiment, the null hypothesis refers to a general or default position: that there is no relationship between two measured phenomena, or that a potential medical treatment has no effect. Rejecting or disproving the null hypothesis – and thus concluding that there are grounds for believing that there is a relationship between two phenomena or that a potential treatment has a measurable effect – is a central task in the modern practice of science, and gives a precise sense in which a claim is capable of being proven false.In statistical significance, the null hypothesis is often denoted H0 (read “H-nought” in Britain or "H-zero" in America ), and is generally assumed true until evidence indicates otherwise (e.g., H0: μ = 500 hours). The concept of a null hypothesis is used differently in two approaches to statistical inference. In the significance testing approach of Ronald Fisher, a null hypothesis is potentially rejected or disproved on the basis of data that is significant under its assumption, but never accepted or proved. In the hypothesis testing approach of Jerzy Neyman and Egon Pearson, a null hypothesis is contrasted with an alternative hypothesis, and these are distinguished on the basis of data, with certain error rates. Proponents of these two approaches criticize each other, though today a hybrid approach is widely practiced and presented in textbooks. This hybrid is in turn criticized as incorrect and incoherent—see statistical hypothesis testing. Statistical significance plays a pivotal role in statistical hypothesis testing where it is used to determine if a null hypothesis can be rejected or retained.".
- Null_hypothesis wikiPageExternalLink A29337.html.
- Null_hypothesis wikiPageID "226673".
- Null_hypothesis wikiPageRevisionID "602043866".
- Null_hypothesis hasPhotoCollection Null_hypothesis.
- Null_hypothesis leadRewrite "December 2013".
- Null_hypothesis moreFootnotes "December 2013".
- Null_hypothesis refimprove "December 2013".
- Null_hypothesis subject Category:Articles_with_inconsistent_citation_formats.
- Null_hypothesis subject Category:Design_of_experiments.
- Null_hypothesis subject Category:Hypothesis_testing.
- Null_hypothesis subject Category:Statistical_inference.
- Null_hypothesis comment "In statistical inference of observed data of a scientific experiment, the null hypothesis refers to a general or default position: that there is no relationship between two measured phenomena, or that a potential medical treatment has no effect.".
- Null_hypothesis label "Hipótese nula".
- Null_hypothesis label "Hipótesis nula".
- Null_hypothesis label "Hypothese (Statistik)".
- Null_hypothesis label "Hypothese (statistiek)".
- Null_hypothesis label "Hypothèse nulle".
- Null_hypothesis label "Ipotesi nulla".
- Null_hypothesis label "Null hypothesis".
- Null_hypothesis label "Нулевая гипотеза".
- Null_hypothesis label "فرضية العدم".
- Null_hypothesis label "零假设".
- Null_hypothesis sameAs Hypothese_(Statistik).
- Null_hypothesis sameAs Hipótesis_nula.
- Null_hypothesis sameAs Hipotesi_nulu.
- Null_hypothesis sameAs Hypothèse_nulle.
- Null_hypothesis sameAs Ipotesi_nulla.
- Null_hypothesis sameAs 귀무가설.
- Null_hypothesis sameAs Hypothese_(statistiek).
- Null_hypothesis sameAs Hipótese_nula.
- Null_hypothesis sameAs m.01h19_.
- Null_hypothesis sameAs Q628374.
- Null_hypothesis sameAs Q628374.
- Null_hypothesis wasDerivedFrom Null_hypothesis?oldid=602043866.
- Null_hypothesis isPrimaryTopicOf Null_hypothesis.