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Computation of cumulative density of noncentral chi-square distribution in Excel [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2022
Noncentral distributions are obtained by transformation of their respective central distributions, and are identified by a noncentrality parameter. The noncentrality parameter measures the degree to which mean of test statistics departs, when the null ...
Sambaraju, Prasanth
doaj   +1 more source

Fisher’s significance test: A gentle introduction

open access: yesGMS Medizinische Informatik, Biometrie und Epidemiologie, 2020
The p-value is often misunderstood and, for example, misinterpreted as a probability for the correctness of the null hypothesis. The aim of this article is to first explain the definition of the p-value.
Stang, Andreas, Kowall, Bernd
doaj   +1 more source

Rediscovering a Little Known Fact about the t-test and the F-test: Algebraic, Geometric, Distributional and Graphical Considerations

open access: yesStatistica, 2023
We discuss the role that the null hypothesis should play in the construction of a test statistic used to make a decision about that hypothesis.
Jennifer A. Sinnott   +2 more
doaj   +1 more source

Hypothesis of the scientific research [PDF]

open access: yesUniverzitetska Misao, 2019
To clarify the hypotheses of scientific research and their role, it is first necessary to clarify the hypothesis concept. The hypothesis is called the initial and unsafe assumption, but it is, however, unlikely to be verified, based on which the first ...
Rexhep Bujari Remzi, Ali Azemi Bashkim
doaj   +1 more source

Moving beyond traditional null hypothesis testing: Evaluating expectations directly

open access: yesFrontiers in Psychology, 2011
This mini-review illustrates that testing the traditional null hypothesis is not always the appropriate strategy. Half in jest, we discuss Aristotle’s scientific investigations into the shape of the earth in the context of evaluating the traditional null
Rens eVan De Schoot   +2 more
doaj   +1 more source

Possibility Measure of Accepting Statistical Hypothesis

open access: yesMathematics, 2020
Taking advantage of the possibility of fuzzy test statistic falling in the rejection region, a statistical hypothesis testing approach for fuzzy data is proposed in this study.
Jung-Lin Hung   +2 more
doaj   +1 more source

P-Value demystified

open access: yesIndian Dermatology Online Journal, 2019
Biomedical research relies on proving (or disproving) a research hypothesis, and P value becomes a cornerstone of “null hypothesis significance testing.” P value is the maximum probability of getting the observed outcome by chance. For a statistical test
Amrita Sil   +2 more
doaj   +1 more source

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