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CAUSAL INFERENCE Part III / Michaelmas 2023Example Sheet 1 ...
www.statslab.cam.ac.uk/~qz280/teaching/causal-2023/E1.pdf22 Jul 2024: Compare this with Fisher’s exact test in the randomization model discussedin lectures. ... i. This test should compare T with quantilesof the standard normal distribution after scaling. -
SISCER Module 12 Lecture 4: Matched Case-Control Studies
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L4.pdf22 Jul 2024: I Mantel–Haenszel test. I Logistic regression adjusting for treatment, stratum indicators (and potentiallyother covariates). ... multiple 22 tablesI Consider sensitivity analysis for Fisher’s exact test in one 22 table. -
Network dimensioning in a packet switched environment
www.statslab.cam.ac.uk/~frank/PAPERS/dhk.html15 Feb 2010: the new economics of service provision. -
STATISTICAL MODELLING Part IIC, Michaelmas 2019Practical 1:…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P1S.pdf22 Jul 2024: examinable) tells us is a valid approximationto the exact distribution of the test statistic under the null. ... the (approximate) p-value for thetwo-sided test statistic. This is known as a permutation or exact test, and you can read a briefdescription -
A study of simple charging schemes for broadband networks
www.statslab.cam.ac.uk/~rrw1/abstracts/c00c.html20 Sep 2011: To achieve economic efficiency, it is necessary that usage-based charging schemes capture the relative amount of resources used by connections. -
ABR pricing experiments in a real network
www.statslab.cam.ac.uk/~rrw1/abstracts/c97b.html20 Sep 2011: Considering aggregate user benefit, welfare economics suggests pricing schemes. -
www.statslab.cam.ac.uk/~qz280/index.xml
www.statslab.cam.ac.uk/~qz280/index.xml22 Jul 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=5725 Jul 2024: SM Pitts, K Politis. – Insurance: Mathematics and Economics. (2008). 42,. -
www.statslab.cam.ac.uk/~qz280/publication/index.xml
www.statslab.cam.ac.uk/~qz280/publication/index.xml22 Jul 2024: qz280/publication/pathgps/ Wed, 04 May 2022 00:00:00 0000 https://www.statslab.cam.ac.uk/qz280/publication/pathgps/ What is a randomization test? ... 21 Jul 2021 00:00:00 0000 https://www.statslab.cam.ac.uk/qz280/publication/fda-comment-2021/ Multiple -
Additional notes
www.statslab.cam.ac.uk/~rrw1/opt1998/more.html25 Apr 1997: and social sciences (where the desire to optimize in business and economics is obvious). -
Optimization and Control
www.statslab.cam.ac.uk/~rrw1/oc/index2012.html13 Mar 2012: Applications of this course are to be found in science, economics and engineering (e.g., "insects as optimizers", "planning for retirement", "finding a parking space", "optimal gambling" and "steering a space -
An intelligent agent for optimizing QoS-for-money in priced ABR…
www.statslab.cam.ac.uk/~frank/PAPERS/iaabr.html25 Nov 2012: Our approach can be applied to more general cases of economic sharing of network resources, and offers new capabilities for resource management, while it is not specific to ABR. -
STATISTICAL MODELLING Part IIC, Michaelmas 2019Practical 6: Binomial…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P6S.pdf22 Jul 2024: This test cannot reject the simpler model without interactions between mumMyopic and dadMyopic. ... To test the hypothesis thatthe effects are equal, we can use the z-test for this coefficient.mumPlusdadMyopic <- (dadMyopic == "Yes") (mumMyopic == -
Acknowledgements
www.statslab.cam.ac.uk/~frank/TALKS/RoySoc99/tsld002.htm15 Dec 1999: Microsoft Research: Paul Barham, Peter Key, Koenraad Laevens, Derek McAuley. Economics: Robin Mason. -
SISCER Module 15 Practice 3: DID
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/S4.pdf22 Jul 2024: Estimate Std. Error t value Pr(>|t|)## -0.036548937 0.012646474 -2.890049673 0.003893424# cluster-robust standard error with CR2 small-sample correctioncoeftest.twfe <- coef_test(fit.twfe,. ... 2. mod <- lm(form, data = df). # using arguments from here:# -
STATISTICAL MODELLING Part IIC, Michaelmas 2021Practical 6: Binomial…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P6.pdf22 Jul 2024: 2 609 439.60 8 40.478 2.61e-06. In contrast to the lm case, here we need to specify that we want to perform a likelihood ratio test (test= ... To formally test this hypothesis, we should createa variable. > mumPlusdadMyopic <- (dadMyopic == "Yes") -
SISCER Module 12 Lecture 5: Instrumental variables
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L5.pdf22 Jul 2024: IV in Economics: Effect of military service on earnings (Angrist, 1990). ... American Economic Review, 80(3):313–336. Gamazon, E. R., , Wheeler, H. E., Shah, K. -
STATISTICAL MODELLING Part IIC, Michaelmas 2021Practical 5: ANOVA and …
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P5.pdf22 Jul 2024: interaction.plot(Photo, Quality, fitted.values(EssayMarksLM2)). > interaction.plot(Quality, Photo, fitted.values(EssayMarksLM2)). To test for the presence of interactions, we again use an F-test:. > ... Would it be possible to com-pare the models -
Stochastic Networks
www.statslab.cam.ac.uk/~frank/pref.html25 Jul 2004: stochastic economic lot scheduling problem. -
Sensitivity analysis via stochastic programming
www.statslab.cam.ac.uk/~qz280/talk/icsds-2023/slides.pdf22 Jul 2024: Blattman, Christopher and Jeannie Annan (2010). “The Consequences of ChildSoldiering”. In: The Review of Economics and Statistics 92.4, pp. ... In:American Economic Review 93, pp. 126–132. Saltelli, Andrea et al. (2004). -
Simultaneous Hypothesis Testing using Internal Negative Controls…
www.statslab.cam.ac.uk/~qz280/publication/ranc/slides.pdf22 Jul 2024: Den. sity. Protein under investigation negative control. (a) P-values from a two-sample “t-test”. ... Enabled by validity PRDS. Global/intersection null: Simes’ test;. FWER: Hochberg-Hommel procedure (closure of Simes’ test);. -
Practical: Matching/Weighting and Sensitivity Analysis
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/P4.pdf22 Jul 2024: standard error with CR2 small-sample correctioncoeftest.twfe <- coef_test(fit.twfe, vcov = "CR2", cluster = mpdta$countyreal)coeftest.twfe[2,]. ... CR2 small-sample correctioncoeftest.twfe.dynamic <- coef_test(fit.twfe.dynamic, vcov = "CR2", cluster = -
STATISTICAL MODELLING Part IIC, Michaelmas 2021Practical 4: More on…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P4.pdf22 Jul 2024: If the goal is to test the significanceof some coefficients, post model-selection inference is needed to control statistical errors. ... Note that we supplied the models in order of nestedness, and so the anova functionperforms F-tests between adjacent -
Almost Exact Mendelian Randomization Qingyuan Zhao Statistical…
www.statslab.cam.ac.uk/~qz280/talk/eurocim-2023/slides.pdf22 Jul 2024: 1993). “Transmission Test for Linkage Disequilibrium: The Insulin Gene Regionand Insulin-Dependent Diabetes Mellitus (IDDM).”. ... Fisher’s combination test 0.03 0.05 0.16. Two-stage least squares < 1020 4.5 1011. -
STATISTICAL MODELLING Part IIC / Michaelmas 2022Example Sheet 2 ...
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/E2.pdf22 Jul 2024: Hint: Use (2). How canwe construct a hypothesis test based on η̃i to test whether the i. ... Then apply your hypothesis test to check whetherthe observation corresponding to humans is an outlier. -
John Hammersley
www.statslab.cam.ac.uk/~grg/papers/ham1-ph.html14 May 2004: He spent some years commuting to Harwell before returning in 1959 as a Senior Research Officer in the Institute of Economics and Statistics. -
STATISTICAL MODELLING Part IIC / Michaelmas 2022Example Sheet 1 ...
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/E1.pdf22 Jul 2024: 12. Prove that in the linear model Y = Xβ ε with ε | X Nn(0,σ2I), the F-test and t-test fortesting H0 : βp = 0 versus H1 : βp 6= 0 ... β̂2p{(XTX)1}ppσ̂2. =‖(H H0)Y‖21. np‖(I H)Y‖2. Verify the equivalence of the F- and t-tests in an -
Abstract
www.statslab.cam.ac.uk/~rrw1/abstracts/c95b.html20 Sep 2011: Thus, the switches constantly estimate their spare capacity. Simulations were performed using Markov fluid sources to test the validity of our approach. -
SISCER Module 12 Lecture 2: Matching for Cohort Studies
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L2.pdf22 Jul 2024: Inference methods. I Randomization tests (Lecture 1): e.g., Fisher exact test,Cochran–Mantel–Haenszel test, Wilcoxon’s rank sum test, Wilcoxon’s signed ranktest, and permutation tests. ... S. (2010). Using the cross-match test to appraise -
STATISTICAL MODELLING Part IIC, Michaelmas 2019Practical 2: More on…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P2S.pdf22 Jul 2024: itis safe to use this test from the point of view of false rejections. ... In fact, the numerical output of qqplot_Fsuggests that the Type-I error for a test with level 5% is about 4.1%. -
STATISTICAL MODELLING Part IIC, Michaelmas 2019 Practical 8:…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P8S.pdf22 Jul 2024: S. A. Bacallado. and Dr. R. Shah. Studying the effect of sociabilitySuppose we want to test the effect of sociability, as measured by the variables go_out_f and ... 1] 0.5351263anova(GammaMod0,GammaMod1,test="F"). ## Analysis of Deviance Table#### Model 1 -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=6225 Jul 2024: MJ Sculpher, MJ Buxton, BA Ferguson, DJ Spiegelhalter, AJ Kirby. – Health Economics. -
www.statslab.cam.ac.uk/~qz280/tag/philosophy/index.xml
www.statslab.cam.ac.uk/~qz280/tag/philosophy/index.xml22 Jul 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=5825 Jul 2024: LCG Rogers. – Mathematics and Financial Economics. (2008). 2,. 1071. VALUATIONS AND DYNAMIC CONVEX RISK MEASURES. -
www.statslab.cam.ac.uk/~qz280/post/index.xml
www.statslab.cam.ac.uk/~qz280/post/index.xml22 Jul 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=10225 Jul 2024: P Sousi. Discussion of Adaptive confidence intervals for the test error in classification by Laber and Murphy. -
www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/index.xml
www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/index.xml22 Jul 2024: 00 0000 https://www.statslab.cam.ac.uk/qz280/talk/imperial-2022/ Multiple conditional randomization tests https://www.statslab.cam.ac.uk/qz280/talk/mcp-2022/ Wed, 31 Aug 2022 ... 27 Jun 2022 17:10:00 0000 https://www.statslab.cam.ac.uk/qz280/talk/ims-2022 -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=10125 Jul 2024: Is equal to. Is not earlier than. Is between. And. A test for normality against symmetric alternatives. -
www.statslab.cam.ac.uk/~qz280/author/paul-rosenbaum/index.xml
www.statslab.cam.ac.uk/~qz280/author/paul-rosenbaum/index.xml22 Jul 2024: rosenbaum/ Cross-screening in observational studies that test many hypotheses https://www.statslab.cam.ac.uk/qz280/publication/cross-screening/ Mon, 06 Mar 2017 00:00:00 0000 -
www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/index.xml
www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/index.xml22 Jul 2024: Mar 2023 14:36:34 -0400 https://www.statslab.cam.ac.uk/qz280/publication/ranc/ Multiple conditional randomization tests https://www.statslab.cam.ac.uk/qz280/publication/multiple-crts/ Thu, 22 ... conservative/ Cross-screening in observational studies -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=125 Jul 2024: 2024). 405,. 74. (doi: 10.1007/s00220-024-04960-5). Temporally Causal Discovery Tests for Discrete Time Series and Neural Spike Trains. -
Qingyuan Zhao | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/author/qingyuan-zhao/22 Jul 2024: Search. Qingyuan Zhao. University Associate Professor in Statistics. I am a University Associate Professor of Statistics in the Statistical Laboratory, Department of Pure Mathematics and Mathematical Statistics (DPMMS) at University of Cambridge, a -
Talks
www.statslab.cam.ac.uk/~frank/TALKS/4 Jul 2024: MITACS meeting on Network and Internet Economics, Vancouver, May 2011. EURANDOM, Netherlands, April 2011. ... The Human Dimension of Risk, Cambridge, December 2010. Economic perspectives on congestion (abstracts). -
Randomization (project page) | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/project/randomization/22 Jul 2024: We apply ideas from post-selection inference to randomization tests for adaptive experiments. ... August 2022The meaning of randomization tests has become obscure in statistics education and practice over the last century. -
Randomization Inference | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/22 Jul 2024: The meaning of randomization tests has become obscure in statistics education and practice over the last century. ... A new term---'quasi-randomization test'---is …. We propose a general framework for (multiple) conditional randomization tests that -
References for Ingenia article
www.statslab.cam.ac.uk/~frank/PAPERS/ingenia_refs.html4 Sep 2008: Vickrey's first degree was in Mathematics and Electrical Engineering from Yale, and he shared the Nobel Prize for Economics in 1996. ... In his ideal world, engineering economics would occupy a position of prominence and efficient pricing would be a -
Statistics
www.statslab.cam.ac.uk/~rrw1/stats/index.html31 Jul 2013: lecture 13). Factor analysis and the Myers-Briggs test. (Lecture 14). Discriminant analysis, principal components, bootstrap. ... One in 750,000? One in 20,000? One in 15,000,000? Wikipedai entriies of some famous statisticians: Bayes (Bayesian inference) -
Economic Issues in Shared Infrastructures Richard Weber Statistical…
www.statslab.cam.ac.uk/~rrw1/talks/visa.pdf24 Nov 2010: Our infrastructure optimization problem. The problem of economics for infrastructure optimization is asfollows. ... The problem of economics for infrastructure optimization is asfollows. I Say how the infrastructure will be operated for possible subsetof -
Multiple Testing | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/22 Jul 2024: Motivated by a real proteomic dataset, we will present three promising and closely connected …. Multiple conditional randomization tests. ... We propose a general framework for (multiple) conditional randomization tests that incorporate several -
Genetics | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/tag/genetics/22 Jul 2024: invariance. This paper uses a generalized Stolarsky's invariance principle to approximate the permutation $p$-value for two-sample linear test statistics.
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