| null hypothesis |
The statistical hypothesis that is assumed to be true when generating the sampling distribution used in a statistical test. Often used to signify a zero or null treatment effect or the equivalence of population parameters. Reference: Chapters 6, 7
출처: www.ablongman.com/html/abrami/glossary/glossary.ht...
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| null hypothesis |
The assumption that nothing other than chance is operating to produce the effect which we see in a particular data set. The null hypothesis is rejected if a particular outcome, or the data set as a whole, is very unlikely to have been produced by chance. No particular alternative hypothesis is thereby proved; the only conclusion is that something is going on. See Lesson 1.
출처: www.umass.edu/wsp/statistics/glossary/kn.html
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| null hypothesis |
The state opposite to that suggested in a hypothesis, postulated in the hope of rejecting its form and therefore proving the hypothesis.
출처: cwx.prenhall.com/bookbind/pubbooks/clarke/chapter6...
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| null hypothesis |
The statistical hypothesis that one variable (eg whether or not a study participant was allocated to receive an intervention) has no association with another variable or set of variables (eg whether or not a study participant died), or that two or more population distributions do not differ from one another. In simplest terms, the null hypothesis states that the results observed in a study are no different from what might have occurred as a result of the play of chance.
출처: www.sahealthinfo.org/evidence/m-n.htm
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| null hypothesis |
A formal statement that there is no difference or no relationship between variables. Researchers often use the results of statistical test to reject the null hypothesis.
출처: www.mh.state.oh.us/oper/research/pubs.ta.research....
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| null | declare invalid |
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| null | (obstetrics) a woman who has never give birth to a child |
| null | the state of nonexistence |