Results 21 to 30 of about 520,005 (257)

Continuity correction of Pearson’s chi-square test in 2x2 Contingency Tables: A mini-review on recent development

open access: yesEpidemiology, Biostatistics and Public Health, 2019
The Pearson’s chi-square test represents a nonparametric test more used in Biomedicine and Social Sciences, but it introduces an error for 2x2 contingency tables, when a discrete probability distribution is approximated with a continuous distribution ...
Nicola Serra   +3 more
doaj   +1 more source

Chebyshev–Edgeworth-Type Approximations for Statistics Based on Samples with Random Sizes

open access: yesMathematics, 2021
Second-order Chebyshev–Edgeworth expansions are derived for various statistics from samples with random sample sizes, where the asymptotic laws are scale mixtures of the standard normal or chi-square distributions with scale mixing gamma or inverse ...
Gerd Christoph, Vladimir V. Ulyanov
doaj   +1 more source

On Corrections to the Chi-Squared Distribution

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1958
Summary The method of characteristic functions is used to obtain a correction to the usual approximation to the distribution of the chi-squared goodness of fit criterion for a multinomial distribution.
openaire   +2 more sources

Continuity correction of Pearson’s chi-square test in 2x2 Contingency Tables: A mini-review on recent development

open access: yesEpidemiology, Biostatistics and Public Health, 2022
The Pearson’s chi-square test represents a nonparametric test more used in Biomedicine and Social Sciences, but it introduces an error for 2x2 contingency tables, when a discrete probability distribution is approximated with a continuous distribution ...
Nicola Serra   +3 more
doaj  

Health Literacy, Self‐Efficacy and Knowledge of Sickle Cell Disease Among Caregivers

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a hereditary blood disorder in which abnormal haemoglobin leads to severe anaemia, painful crises and organ failure. Caregivers’ health literacy (HL) – their ability to assess, understand and apply information, and interact with healthcare professionals – is crucial for managing children with SCD, yet ...
Melanie Bruinooge   +6 more
wiley   +1 more source

Compedium model using frequency / cumulative distribution function for receptors of survival proteins: Epidermal growth factor and insulin [PDF]

open access: yesNetwork Biology, 2016
In this paper I used the frequency and cumulative distribution functions to make a best model of the receptors of the survival proteins i.e. Epidermal Growth Factor Receptor (EGFR) and Insulin Receptor (IRS) using ten concentrations combination of TNF ...
Shruti Jain
doaj  

Childhood Acute Lymphoblastic Leukemia Survival in Western Kenya: Reduction in Early Deaths and Treatment Abandonment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background An earlier study on children diagnosed with acute lymphoblastic leukemia (ALL) at Moi Teaching and Referral Hospital (MTRH) in Kenya reported a low event‐free survival (EFS), excess treatment abandonment, and high induction mortality.
Gilbert Olbara   +7 more
wiley   +1 more source

Statistical distribution of rainfall in Uttarakhand, India

open access: yesApplied Water Science, 2017
Understanding of rainfall is an important issue for Uttarakhand, India which having varied topography and due to that extreme rainfall causes quick runoff which warns structural and functional safety of large structures and other natural resources.
Vikram Kumar, Shanu, Jahangeer
doaj   +1 more source

An Adaptive Filter for Image Noise Removal Using Chi-Square Goodness-of-Fit to Uniform Distribution [PDF]

open access: yesEngineering and Technology Journal, 2013
Noise is any undesired information that contaminates an image. The ideal situation (no noise) never occurs in practice, so there is a little point in ignoring it. Hence, one of the primary concerns of digital image processing is to increase image quality
Abdulameer A. Kareem   +2 more
doaj   +1 more source

Testing Multivariate Normality Based on F-Representative Points

open access: yesMathematics, 2022
The multivariate normal is a common assumption in many statistical models and methodologies for high-dimensional data analysis. The exploration of approaches to testing multivariate normality never stops.
Sirao Wang   +3 more
doaj   +1 more source

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