p-value

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description: a statistic used in hypothesis testing to indicate the strength of the evidence against the null hypothesis

116 results

The Quantum Magician

by Derek Künsken  · 1 Oct 2018  · 430pp  · 107,765 words

distribution suggests to me that it has infected support systems.” “That’s not random,” Cassandra said. “No.” Cassandra had a brief urge to recalculate the p-value to verify the non-randomness, but Iekanjika wouldn’t care and Bel would already have calculated it. “The infection pattern doesn’t follow the systems

May Contain Lies: How Stories, Statistics, and Studies Exploit Our Biases—And What We Can Do About It

by Alex Edmans  · 13 May 2024  · 315pp  · 87,035 words

World Cup on stock markets – Alex Edmans and CNN’s Richard Quest’. Available at https://bit.ly/soccercnn 6. Data is Not Evidence: Causation * The ‘p-value’ corresponds to the significance level, which needs to be 0.05 or lower for a result to be deemed significant. † More technical terms for ‘common

Braiding Sweetgrass

by Robin Wall Kimmerer

-than-human world. I’ve never met an ecologist who came to the field for the love of data or for the wonder of a p-value. These are just ways we have of crossing the species boundary, of slipping off our human skin and wearing fins or feathers or foliage, trying

Thinking in Bets

by Annie Duke  · 6 Feb 2018  · 288pp  · 81,253 words

for others to assess the quality of the information being presented, systematized through peer review before publication. Confidence in the results is expressed through both p-values, the probability one would expect to get the result that was actually observed (akin to declaring your confidence on a scale of zero to ten

football game, 56–59 Prisoner’s Dilemma (Poundstone), 19, 246n privacy, 157 Prospect Theory, 36 Prudential Retirement, 185 psychology, 145–47, 149 Pulitzer, Joseph, 60 p-values, 72 Rashomon, 157 Rashomon Effect, 157–58 rationality and irrationality, 11, 43, 51, 64, 181n, 183, 204 Ulysses contracts and, 201, 203 words, phrases, and

SciPy and NumPy

by Eli Bressert  · 14 Oct 2012  · 62pp  · 14,996 words

elements sample = np.random.randn(100) # normaltest tests the null hypothesis. out = stats.normaltest(sample) print('normaltest output') print('Z-score = ' + str(out[0])) print('P-value = ' + str(out[1])) # kstest is the Kolmogorov-Smirnov test for goodness of fit. # Here its sample is being tested against the normal distribution. # D is

closer it is to 0 the better. out = stats.kstest(sample, 'norm') print('\nkstest output for the Normal distribution') print('D = ' + str(out[0])) print('P-value = ' + str(out[1])) # Similarly, this can be easily tested against other distributions, # like the Wald distribution. out = stats.kstest(sample, 'wald') print('\nkstest output for

the Wald distribution') print('D = ' + str(out[0])) print('P-value = ' + str(out[1])) Researchers commonly use descriptive functions for statistics. Some descriptive functions that are available in the stats package include the geometric mean (gmean

The Unknowers: How Strategic Ignorance Rules the World

by Linsey McGoey  · 14 Sep 2019

Beautiful Testing: Leading Professionals Reveal How They Improve Software (Theory in Practice)

by Adam Goucher and Tim Riley  · 13 Oct 2009  · 351pp  · 123,876 words

being told, “Looks like the average of your generator is 7 when it should be 8,” than to being told, “I’m getting a small p-value from my Kolmogorov-Smirnov test.” Range Tests If a probability distribution has a limited range, the simplest thing to test is whether the output values

How to Diagnose and Fix Everything Electronic

by Michael Geier  · 6 Jan 2011  · 336pp  · 163,867 words

Why Information Grows: The Evolution of Order, From Atoms to Economies

by Cesar Hidalgo  · 1 Jun 2015  · 242pp  · 68,019 words

of the country’s population. 5. In the case of Honduras and Argentina the probability of the observed overlap (what is known academically as its p-value) is 4.4 × 10–4. The same probability is 2 × 10–2 for the overlap observed between Honduras and the Netherlands and 4 × 10–3

Keeping Up With the Quants: Your Guide to Understanding and Using Analytics

by Thomas H. Davenport and Jinho Kim  · 10 Jun 2013  · 204pp  · 58,565 words

collected and tested to see how “unusual” it is under the temporary assumption that H0 is true. Rare or unusual data (often represented by a p-value below a specified threshold) is an indication that H0 is false, which constitutes a statistically significant result and support of the alternative hypothesis. Independent variable

predictors would serve as independent variables. Alternative names are explanatory variable, predictor variable, and regressor. p-value: When performing a hypothesis test, the p-value gives the probability of data occurrence under the assumption that H0 is true. Small p-values are an indication of rare or unusual data from H0, which in turn provides support

that H0 is actually false (and thus support of the alternative hypothesis). In hypothesis testing, we “reject the null hypothesis” when the p-value is less than the significance level a (Greek alpha), which is often 0.05 or 0.01. When the null hypothesis is rejected, the result

(if H0 were indeed true) for us to doubt H0 and reject it as being true. In practice, this is often assessed by calculating a p-value; p-values less than alpha are indication that H0 is rejected and the alternative supported. t-test or student’s t-test: A test statistic that tests

error: This error occurs when the null hypothesis is true, but it is rejected. In traditional hypothesis testing, one rejects the null hypothesis if the p-value is smaller than the significance level α. So, the probability of incorrectly rejecting a true null hypothesis equals α and thus this error is also

reassuring to the wife but persuasive to her husband as well. In statistical hypothesis testing, the probability of 0.003 calculated above is called the p-value—the probability of obtaining a test statistic (e.g., Z-value of 2.75 in this case) at least as extreme as the one that

hypothesis (H0) is “This baby is my husband’s.” In traditional hypothesis testing, one rejects the null hypothesis if the p-value is smaller than the significance level. In this case a p-value of 0.003 would result in the rejection of the null hypothesis even at the 1 percent significance level—typically

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by F. Perry Wilson  · 24 Jan 2023  · 286pp  · 92,521 words

Human Diversity: The Biology of Gender, Race, and Class

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The Art of Computer Programming: Sorting and Searching

by Donald Ervin Knuth  · 15 Jan 1998

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by Foster Provost and Tom Fawcett  · 30 Jun 2013  · 660pp  · 141,595 words

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The Precipice: Existential Risk and the Future of Humanity

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by Ilija I. Zovko  · 1 Nov 2008  · 119pp  · 10,356 words

Commodity Trading Advisors: Risk, Performance Analysis, and Selection

by Greg N. Gregoriou, Vassilios Karavas, François-Serge Lhabitant and Fabrice Douglas Rouah  · 23 Sep 2004

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by Marcos Lopez de Prado  · 2 Feb 2018  · 571pp  · 105,054 words

The Half-Life of Facts: Why Everything We Know Has an Expiration Date

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by William J. Bernstein  · 12 Oct 2000

Everydata: The Misinformation Hidden in the Little Data You Consume Every Day

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Monte Carlo Simulation and Finance

by Don L. McLeish  · 1 Apr 2005

The Art of Assembly Language

by Randall Hyde  · 8 Sep 2003  · 968pp  · 224,513 words

New Dark Age: Technology and the End of the Future

by James Bridle  · 18 Jun 2018  · 301pp  · 85,263 words

Advances in Artificial General Intelligence: Concepts, Architectures and Algorithms: Proceedings of the Agi Workshop 2006

by Ben Goertzel and Pei Wang  · 1 Jan 2007  · 303pp  · 67,891 words

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Expected Returns: An Investor's Guide to Harvesting Market Rewards

by Antti Ilmanen  · 4 Apr 2011  · 1,088pp  · 228,743 words

Hands-On Machine Learning With Scikit-Learn and TensorFlow: Concepts, Tools, and Techniques to Build Intelligent Systems

by Aurélien Géron  · 13 Mar 2017  · 1,331pp  · 163,200 words

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by Yuxing Yan  · 24 Apr 2014  · 408pp  · 85,118 words

High-Frequency Trading: A Practical Guide to Algorithmic Strategies and Trading Systems

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In Pursuit of the Traveling Salesman: Mathematics at the Limits of Computation

by William J. Cook  · 1 Jan 2011  · 245pp  · 12,162 words

Valuation: Measuring and Managing the Value of Companies

by Tim Koller, McKinsey, Company Inc., Marc Goedhart, David Wessels, Barbara Schwimmer and Franziska Manoury  · 16 Aug 2015  · 892pp  · 91,000 words

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by Merve Emre  · 16 Aug 2018  · 384pp  · 112,971 words

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by W. Richard Stevens, Bill Fenner, Andrew M. Rudoff  · 8 Jun 2013

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by Michael Kearns and Aaron Roth  · 3 Oct 2019

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by Stuart Ritchie  · 20 Jul 2020

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by Cathy O'Neil and Rachel Schutt  · 8 Oct 2013  · 523pp  · 112,185 words

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by Robert Elliott Smith  · 26 Jun 2019  · 370pp  · 107,983 words

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by David G. Blanchflower  · 12 Apr 2021  · 566pp  · 160,453 words

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by David Sumpter  · 18 Jun 2018  · 276pp  · 81,153 words

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by Trevor Hastie, Robert Tibshirani and Jerome Friedman  · 25 Aug 2009  · 764pp  · 261,694 words

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