p-value


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p-value

The probability, expressed as a number, that a particular effect or association is real or that a given statement or hypothesis is true. If a trial has n possible outcomes and m of these are the desired outcome, then the probability (p) of obtaining the desired outcome is m /n . If all the outcomes are as desired then m = n and p = 1. If none are as desired p = 0. So p is a measure that will alwys range from 0 to 1.

p-value,

n in statistics, the probability that a random variable will be found to have a value equal to or greater than the observed value by chance alone. This value provides an objective basis from which to assess the relative change in the data.
References in periodicals archive ?
p-Value Capital Management, LLC today issued a notice to the fellow shareholders of Myrexis, Inc.
DR was positively correlated with poor glycemic control, hypertension, increasing age and dyslipidemia at highly significant p-value.
Comparison of categorical values like efficacy was done using chi-square test and p-value less than 0.
6) equal to] 60% Category Post-internship, p-value for n (%) between-group test Gender (N=411) 0.
Screening of case and control group data showed no deviation from Hardy-Weinberg equilibrium with p-value 0.
Tenders are invited for Profile Checking Guage P Value With Feeler Guage For Bull Gear 65 Teeth And 64 Teeth As Per- 1 Profile Checking Guage P-Value With Feeler Guage For Bull Gear -65 Teeth.
Em declaracao da American Statistical Association (ASA), Wasserstein e Lazar (2016) indicam que p-value e significancia estatistica sao frequentemente compreendidos e usados de forma equivocada por uma ampla comunidade de pesquisadores.
Another, less criticized, misuse of the p-value is when the investigators try to use an insignificant and close to unity p-value as evidence for no difference.