# null hypothesis

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Related to null hypothesis: Alternative hypothesis, Hypothesis testing, P value

## null hypothesis

n.
A hypothesis that is assumed to be true for purposes of statistical testing against an alternative hypothesis. The null hypothesis is usually that there is no treatment effect or no difference between groups.

## null hypothesis

n
(Statistics) statistics the residual hypothesis if the alternative hypothesis tested against it fails to achieve a predetermined significance level. Compare hypothesis testing, alternative hypothesis
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Translations
nulová hypotéza
nollahypoteesi
References in periodicals archive ?
We obtain the p-values for the underlying null hypothesis through simulation method by estimating the value of suprema of test statistics, [K.sub.s] [Barrett and Donald (2003)].
(4) The null hypothesis for their study was that there would be no difference in frequency or intensity in radiation dermatitis between the placebo and the curcumin groups of women.
The term "supports this contention" should bring to your mind the idea of a null hypothesis. What is the null hypothesis, the contention that's being investigated?
All the test results failed to reject the null hypothesis for claims on the private sector, the CPI, FCF, and the liabilities of non-residents; these series are all found to be non-stationary at their levels with no trend.
Since p value is less than the level of significance (p < .05), we can reject the null hypothesis and accept the alternate hypothesis, that is the interventions given in Group B (Mulligan mobilisation and UST) were significantly better than Group A (Maitland mobilisation and UST) in improving abduction ROM.
Specifically, it is the probability of having observed the sample data, or some more extreme, if the null hypothesis was true.
Under the null hypothesis, the mean value of the treatment group is less than or equal to that of the control group plus a nonnegative number [delta].
Our findings indicate that the null hypothesis of no abnormal returns can be rejected for buy-and-hold returns in 2006 (p = 0.004) and that, for cumulative abnormal returns, the null hypothesis can be rejected for 2006 and 2007 (p = 0.000 in both cases).
The null hypothesis is that "Co-efficient" of all the variables are equal to zero, i-e there is no joint influence of GDP, FDIPCS, EXR, DI, INF, TB on GDP.
First, the null hypothesis condition was investigated, that is, those without differential item functioning.
Therefore on the basis of this finding the null hypothesis that there is no significant difference of emotional intelligence of social sciences, management sciences and computer sciences university teachers is rejected.
Computation of a single hypothesis test involves defining a null hypothesis [H.sub.0], which will be rejected in favor of an alternative hypothesis [H.sub.A] if a sufficiently extreme value of the test statistic is observed (e.g., Wilks 2011).

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