P value
noun Etymology: probability Date: 1947 the probability of an event or outcome in a statistical experiment; specifically level of significance

New Collegiate Dictionary. 2001.

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  • P-value — Dans un test statistique, p est la probabilité d obtenir au hasard un résultat au moins aussi extrême que la valeur réellement observée, sous l hypothèse nulle. Voir aussi Statistiquement significatif Ce document provient de « P value ».… …   Wikipédia en Français

  • P value — the probability of obtaining by chance a result at least as extreme as that observed, even when the null hypothesis is true and no real difference exists; when P ≤ 0.05 the sample results are usually deemed significant at a statistically… …   Medical dictionary

  • P-value — In statistical significance testing, the p value is the probability of obtaining a test statistic at least as extreme as the one that was actually observed, assuming that the null hypothesis is true. One often rejects the null hypothesis when the …   Wikipedia

  • P-Value — The level of marginal significance within a statistical hypothesis test, representing the probability of the occurrence of a given event. The p value is used as an alternative to rejection points to provide the smallest level of significance at… …   Investment dictionary

  • p-value — A statistics term. A measure of probability that a difference between groups during an experiment happened by chance. For example, a p value of .01 (p = .01) means there is a 1 in 100 chance the result occurred by chance. The lower the p value,… …   English dictionary of cancer terms

  • P (disambiguation) — P is the sixteenth letter of the Latin alphabet.P may also refer to:* P (band), 1993 American rock band * P type semiconductor * p value of a given result in an experiment is the result s statistical significance; the probability of observing… …   Wikipedia

  • P-значение — (англ. P value) величина, используемая при тестировании статистических гипотез. Фактически это вероятность ошибки при отклонении нулевой гипотезы (ошибки первого рода). Проверка гипотез с помощью P значения является альтернативой… …   Википедия

  • P-rep — In statistical hypothesis testing, p rep or prep has been proposed as a statistical alternative to the classic p value. [1] Whereas a p value is the probability of obtaining a result under the null hypothesis, p rep computes the probability of… …   Wikipedia

  • p-Wert — Der p Wert (auch Überschreitungswahrscheinlichkeit, Signifikanzwert; englisch p value von probability, engl. für Wahrscheinlichkeit) ist eine Kennzahl zur Auswertung statistischer Tests. Er steht in enger Beziehung mit dem Signifikanzniveau …   Deutsch Wikipedia

  • P-Test — A statistical method used to test one or more hypotheses within a population or a proportion within a population. When testing a hypothesis about a population proportion (p) within a large population (one in which the sample size, n , is not… …   Investment dictionary

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