Null hypothesis: Béda antara owahan
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Larik 1:
Jroning praktèk [[èlmu]] nglibataké gawé lan nguji ''[[hypothesis|hypotheses]]'',sawijining pratélan ngenani [[Falsifiability|bisa kabukti salah]] nganggo sawijining tès saka dhata sing diamati. '''Null hypothesis''' biyasané magepokan karo sawijining posisi umum utawa baku (‘general or default position). Tuladhané, null hypothesis ya iku : yèn ora ana hubungan antarané rong gejala sing diukur<ref>{{cite web|url=http://www.businessdictionary.com/definition/null-hypothesis.html |title=null hypothesis definition |publisher=Businessdictionary.com |date= |accessdate=2010-07-29}}</ref> or that a potential treatment has no effect.<ref>{{cite web|url=http://www.nlm.nih.gov/nichsr/hta101/ta101014.html |title=HTA 101: Glossary |publisher=Nlm.nih.gov |date=2009-09-08 |accessdate=2010-07-29}}</ref>
Istlah iki wiwitané diluncuraké déning ahli [[génétika]] lan [[statistika]] saka [[Inggris]] [[Ronald Fisher]] ing taun 1935.<ref>{{cite web|url=http://statistics.berkeley.edu/~stark/SticiGui/Text/gloss.htm#null_hypothesis |title=Glossary |publisher=Statistics.berkeley.edu |date=2010-07-25 |accessdate=2010-07-29}}</ref><ref>OED quote: '''1935''' R. A. Fisher, ''The Design of Experiments'' ii. 19, "We may speak of this hypothesis as the 'null hypothesis', and it should be noted that the null hypothesis is never proved or established, but is possibly disproved, in the course of experimentation."</ref>
Biasané hypothesis iki kagandhèng karo hypothesis kaloro yaiku alternative [[hypothesis]], sing nyatakaké anané hubungan antara gejala sing diamati. [[Jerzy Neyman]] lan [[Egon Pearson]] ngresmèkaké minangka sawijining alternatif. Hypothesis alternative ora kudu arupa négasi saka null hypothesis; hypothesis alternatif ngramalaké ail saka pacoban yèn hypothesis alternatif iku bener. Panggunaan hypothesis alternatif ora dadi pérangan saka formulasi [[Fisher]], nanging dadi [[standard]].
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