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  1. Results that match 1 of 2 words

  2. CAUSAL INFERENCE Part III / Michaelmas 2023Example Sheet 1 ...

    www.statslab.cam.ac.uk/~qz280/teaching/causal-2023/E1.pdf
    22 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.
  3. SISCER Module 12 Lecture 4: Matched Case-Control Studies

    www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L4.pdf
    22 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.
  4. Network dimensioning in a packet switched environment

    www.statslab.cam.ac.uk/~frank/PAPERS/dhk.html
    15 Feb 2010: the new economics of service provision.
  5. STATISTICAL MODELLING Part IIC, Michaelmas 2019Practical 1:…

    www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P1S.pdf
    22 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
  6. A study of simple charging schemes for broadband networks

    www.statslab.cam.ac.uk/~rrw1/abstracts/c00c.html
    20 Sep 2011: To achieve economic efficiency, it is necessary that usage-based charging schemes capture the relative amount of resources used by connections.
  7. ABR pricing experiments in a real network

    www.statslab.cam.ac.uk/~rrw1/abstracts/c97b.html
    20 Sep 2011: Considering aggregate user benefit, welfare economics suggests pricing schemes.
  8. www.statslab.cam.ac.uk/~qz280/index.xml

    www.statslab.cam.ac.uk/~qz280/index.xml
    22 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
  9. Publications | Statistical Laboratory

    www.statslab.cam.ac.uk/publications?page=57
    25 Jul 2024: SM Pitts, K Politis. – Insurance: Mathematics and Economics. (2008). 42,.
  10. www.statslab.cam.ac.uk/~qz280/publication/index.xml

    www.statslab.cam.ac.uk/~qz280/publication/index.xml
    22 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
  11. Additional notes

    www.statslab.cam.ac.uk/~rrw1/opt1998/more.html
    25 Apr 1997: and social sciences (where the desire to optimize in business and economics is obvious).
  12. Optimization and Control

    www.statslab.cam.ac.uk/~rrw1/oc/index2012.html
    13 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
  13. An intelligent agent for optimizing QoS-for-money in priced ABR…

    www.statslab.cam.ac.uk/~frank/PAPERS/iaabr.html
    25 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.
  14. STATISTICAL MODELLING Part IIC, Michaelmas 2019Practical 6: Binomial…

    www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P6S.pdf
    22 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 ==
  15. Acknowledgements

    www.statslab.cam.ac.uk/~frank/TALKS/RoySoc99/tsld002.htm
    15 Dec 1999: Microsoft Research: Paul Barham, Peter Key, Koenraad Laevens, Derek McAuley. Economics: Robin Mason.
  16. SISCER Module 15 Practice 3: DID

    www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/S4.pdf
    22 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:#
  17. STATISTICAL MODELLING Part IIC, Michaelmas 2021Practical 6: Binomial…

    www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P6.pdf
    22 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")
  18. SISCER Module 12 Lecture 5: Instrumental variables

    www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L5.pdf
    22 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.
  19. STATISTICAL MODELLING Part IIC, Michaelmas 2021Practical 5: ANOVA and …

    www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P5.pdf
    22 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
  20. Stochastic Networks

    www.statslab.cam.ac.uk/~frank/pref.html
    25 Jul 2004: stochastic economic lot scheduling problem.
  21. Sensitivity analysis via stochastic programming

    www.statslab.cam.ac.uk/~qz280/talk/icsds-2023/slides.pdf
    22 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).
  22. Simultaneous Hypothesis Testing using Internal Negative Controls…

    www.statslab.cam.ac.uk/~qz280/publication/ranc/slides.pdf
    22 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);.
  23. Practical: Matching/Weighting and Sensitivity Analysis

    www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/P4.pdf
    22 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 =
  24. STATISTICAL MODELLING Part IIC, Michaelmas 2021Practical 4: More on…

    www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P4.pdf
    22 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
  25. Almost Exact Mendelian Randomization Qingyuan Zhao Statistical…

    www.statslab.cam.ac.uk/~qz280/talk/eurocim-2023/slides.pdf
    22 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.
  26. STATISTICAL MODELLING Part IIC / Michaelmas 2022Example Sheet 2 ...

    www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/E2.pdf
    22 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.
  27. John Hammersley

    www.statslab.cam.ac.uk/~grg/papers/ham1-ph.html
    14 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.
  28. STATISTICAL MODELLING Part IIC / Michaelmas 2022Example Sheet 1 ...

    www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/E1.pdf
    22 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
  29. Abstract

    www.statslab.cam.ac.uk/~rrw1/abstracts/c95b.html
    20 Sep 2011: Thus, the switches constantly estimate their spare capacity. Simulations were performed using Markov fluid sources to test the validity of our approach.
  30. SISCER Module 12 Lecture 2: Matching for Cohort Studies

    www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L2.pdf
    22 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
  31. STATISTICAL MODELLING Part IIC, Michaelmas 2019Practical 2: More on…

    www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P2S.pdf
    22 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%.
  32. STATISTICAL MODELLING Part IIC, Michaelmas 2019 Practical 8:…

    www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/P8S.pdf
    22 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
  33. Publications | Statistical Laboratory

    www.statslab.cam.ac.uk/publications?page=62
    25 Jul 2024: MJ Sculpher, MJ Buxton, BA Ferguson, DJ Spiegelhalter, AJ Kirby. – Health Economics.
  34. www.statslab.cam.ac.uk/~qz280/tag/philosophy/index.xml

    www.statslab.cam.ac.uk/~qz280/tag/philosophy/index.xml
    22 Jul 2024: or I would call them &ldquo;tests of unusualness&rdquo; or &ldquo;tests of aberrance&rdquo; or &ldquo;test of fishiness&rdquo;) as tests where the treatment (or any variable, for ... randomization tests creates a &ldquo;control group of numbers&rdquo; to
  35. Publications | Statistical Laboratory

    www.statslab.cam.ac.uk/publications?page=58
    25 Jul 2024: LCG Rogers. – Mathematics and Financial Economics. (2008). 2,. 1071. VALUATIONS AND DYNAMIC CONVEX RISK MEASURES.
  36. www.statslab.cam.ac.uk/~qz280/post/index.xml

    www.statslab.cam.ac.uk/~qz280/post/index.xml
    22 Jul 2024: or I would call them &ldquo;tests of unusualness&rdquo; or &ldquo;tests of aberrance&rdquo; or &ldquo;test of fishiness&rdquo;) as tests where the treatment (or any variable, for ... randomization tests creates a &ldquo;control group of numbers&rdquo; to
  37. Publications | Statistical Laboratory

    www.statslab.cam.ac.uk/publications?page=102
    25 Jul 2024: P Sousi. Discussion of Adaptive confidence intervals for the test error in classification by Laber and Murphy.
  38. www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/index.xml

    www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/index.xml
    22 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
  39. Publications | Statistical Laboratory

    www.statslab.cam.ac.uk/publications?page=101
    25 Jul 2024: Is equal to. Is not earlier than. Is between. And. A test for normality against symmetric alternatives.
  40. www.statslab.cam.ac.uk/~qz280/author/paul-rosenbaum/index.xml

    www.statslab.cam.ac.uk/~qz280/author/paul-rosenbaum/index.xml
    22 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
  41. www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/index.xml

    www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/index.xml
    22 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
  42. Publications | Statistical Laboratory

    www.statslab.cam.ac.uk/publications?page=1
    25 Jul 2024: 2024). 405,. 74. (doi: 10.1007/s00220-024-04960-5). Temporally Causal Discovery Tests for Discrete Time Series and Neural Spike Trains.
  43. 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
  44. 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).
  45. 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.
  46. 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
  47. References for Ingenia article

    www.statslab.cam.ac.uk/~frank/PAPERS/ingenia_refs.html
    4 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
  48. Statistics

    www.statslab.cam.ac.uk/~rrw1/stats/index.html
    31 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)
  49. 24 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
  50. 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
  51. 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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