Posts Tagged ‘ statistics ’

“Statistical Concepts in Their Relation to Reality” by E.S. Pearson

April 24, 2015
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“Statistical Concepts in Their Relation to Reality” by E.S. Pearson

To complete the last post, here’s Pearson’s portion of the “triad”  “Statistical Concepts in Their Relation to Reality” by E.S. PEARSON (1955) SUMMARY: This paper contains a reply to some criticisms made by Sir Ronald Fisher in his recent article on “Scientific Methods and Scientific Induction”. Controversies in the field of mathematical statistics seem largely […]

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scale acceleration

April 23, 2015
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scale acceleration

Kate Lee pointed me to a rather surprising inefficiency in matlab, exploited in Sylvia Früwirth-Schnatter’s bayesf package: running a gamma simulation by rgamma(n,a,b) takes longer and sometimes much longer than rgamma(n,a,1)/b, the latter taking advantage of the scale nature of b. I wanted to check on my own whether or not R faced the same […]

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What if the Washington Post did not display all the data

April 23, 2015
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What if the Washington Post did not display all the data

Thanks to reader Charles Chris P., I was able to get the police staffing data to play around with. Recall from the previous post that the Washington Post made the following scatter plot, comparing the proportion of whites among police...

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NEYMAN: “Note on an Article by Sir Ronald Fisher” (3 uses for power, Fisher’s fiducial argument)

April 22, 2015
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NEYMAN: “Note on an Article by Sir Ronald Fisher” (3 uses for power, Fisher’s fiducial argument)

Note on an Article by Sir Ronald Fisher By Jerzy Neyman (1956) Summary (1) FISHER’S allegation that, contrary to some passages in the introduction and on the cover of the book by Wald, this book does not really deal with experimental design is unfounded. In actual fact, the book is permeated with problems of experimentation.  […]

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The fallacy of placing confidence in confidence intervals (version 2)

April 21, 2015
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I, with my coathors, have submitted a new draft of our paper "The fallacy of placing confidence in confidence intervals". This paper is substantially modified from its previous incarnation. Here is the main argument:"[C]onfidence intervals may not be u...

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simulating correlated Binomials [another Bernoulli factory]

April 20, 2015
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simulating correlated Binomials [another Bernoulli factory]

This early morning, just before going out for my daily run around The Parc, I checked X validated for new questions and came upon that one. Namely, how to simulate X a Bin(8,2/3) variate and Y a Bin(18,2/3) such that corr(X,Y)=0.5. (No reason or motivation provided for this constraint.) And I thought the following (presumably […]

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Neyman: Distinguishing tests of statistical hypotheses and tests of significance might have been a lapse of someone’s pen

April 18, 2015
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Neyman: Distinguishing tests of statistical hypotheses and tests of significance might have been a lapse of someone’s pen

“Tests of Statistical Hypotheses and Their Use in Studies of Natural Phenomena” by Jerzy Neyman ABSTRACT. Contrary to ideas suggested by the title of the conference at which the present paper was presented, the author is not aware of a conceptual difference between a “test of a statistical hypothesis” and a “test of significance” and uses […]

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The Non-parametric Bootstrap as a Bayesian Model

April 17, 2015
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The Non-parametric Bootstrap as a Bayesian Model

The non-parametric bootstrap was my first love. I was lost in a muddy swamp of zs, ts and ps when I first saw her. Conceptually beautiful, simple to implement, easy to understand (I thought back then, at least). And when she whispered in my ear, “I...

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Guidelines for reporting confidence intervals

April 17, 2015
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I'm working on a manuscript on confidence intervals, and I thought I'd share a draft section on the reporting of confidence intervals. The paper has several demonstrations of how CIs may, or may not, offer quality inferences, and how they can differ ma...

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Statistics journals network

April 16, 2015
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Statistics journals network

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