Layth Alwan

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Layth Alwan

Layth Alwan

@Layth

Wisconsin Entrou em Temmuz 2008
17 Seguindo27 Seguidores
Jeff Thompson 🆘
Jeff Thompson 🆘@JeffTho10676714·
Friday March 31 my family: me, spouse, 2 teens, arrive London… 1st time ever in England (+ Scotland) for 10 days. Fortunate & excited. Played soccer growing up. Started watching Arsenal in late 90s… loved their football: Ian Wright, Bergkamp, Overmars, T. Henry 1/n @arseblog
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Layth Alwan
Layth Alwan@Layth·
@KabirCreates As a follow-up, I showed this parlor trick to my stats class. I am covering regression these past few weeks. Perfect timing to show this case and the associated ethical issues.
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Layth Alwan
Layth Alwan@Layth·
@KabirCreates You are spot on. Just smoke and mirrors with y and x variables to give a negative scatter to make the gullible think there is a red flag. At the core, he is assuming Trump should receive the same % of party voters as candidate voters. That is a red herring and false assumption.
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Layth Alwan
Layth Alwan@Layth·
@UChiPritzker CNN today mentions Scott Atlas as an alumus of uchicago med as do other media. Stanford Med wrote an open letter disavowing him. Will uchicago take a stance?
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Layth Alwan
Layth Alwan@Layth·
@octonion For n = 130 and approximately 95% CI and random sample, the margin of error will be no greater than 2*sqrt(.5*.5/130) = 0.088 or about 9%.
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Christopher D. Long 🇺🇦🏳️‍🌈🌹
What's fascinating here is that the reported margin of error (9%) seems almost nonsensically low in context. It really makes you wonder how they're doing sampling and what type and degree of sampling bias is actually occurring.
Raul A. Reyes@RaulAReyes

@akateach1 @MariaTeresa1 @votolatino @Maria_Hinojosa @JulianCastro @UNITEDWEDREAM @rolandsmartin @claycane @joseiswriting @RepAOC @AOC @AndrewGillum @ananavarro @georgelopez @MariaTCardona @marianaatencio 1/ The NPR Maris poll surveyed 873 people, of which 130 were Hispanic. For a population size of 56 million (Latinos), surveying 130 people gives you a margin of error of 9 percent - well beyond the range of what most pollsters consider accurate.

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The University of Chicago
The University of Chicago@UChicago·
Pioneering #UChicago mathematician, Prof. Gregory Lawler, has been awarded the prestigious Wolf Prize for his work in probability. Join us in congratulating Prof. Lawler on receiving this honor! ms.spr.ly/6015TBU4T
The University of Chicago tweet media
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Layth Alwan
Layth Alwan@Layth·
@alwaysmansour Dear Mansour, I have always been proud to carry my name. I realized I should do it before Twitter became popular. Thxs for kindly asking. I love you brand name!
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Layth Alwan
Layth Alwan@Layth·
@spyrosmakrid Great ML/time series paper. I am making it required reading for my students. Statisicians need to do more studies like this. ML can have a role but folks accept it like a cult without studies like yours.
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Digital Currency
Digital Currency@MScDigital·
The major finding is: ”The forecasting accuracy of ML forecasting methods is lower than the worst of statistical ones while the accuracy of more than half the ML methods is lower than a random walk”. journals.plos.org/plosone/articl…
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POM Society
POM Society@POM_Society·
The topic for #POMS2018 #eDebate is: “In the age of big data, should OM research/teaching be more data-driven or should OM research/teaching focus more on analytical models to complement the data-driven research/teaching in other disciplines?” @qiuliangfei @subodha0 @NJoglekar
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Layth Alwan
Layth Alwan@Layth·
@brianwilt @Jawbone Nice distribution plot of mean sleep times by University on jawbone blog. What is the mean and standard deviation of individual student observation? Curious how they compare with other studies, like Orzech.
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Layth Alwan
Layth Alwan@Layth·
@octonion Did u look at 1975 American Statistician paper on optimal 0 memory blackjack strategy for 4 decks? And 1956 JASA paper on optimal strategy
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