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Threads 3181 to 3192 of 3192

Forum: Statistical Research

Statistical theory and methodology. Mathematical statistics. Parametric inference. Nonparametric inference.

  1. Sticky Thread Sticky: Proof of the day

    In this thread we post one (or more if you can't wait) proof a day. I'll start by proving the that V=\sigma^2(X'X)^{-1} in the linear...

    Started by Englund‎, 01-18-2014 04:56 AM
    • Replies: 14
    • Views: 18,620
    10-11-2014, 12:02 PM Go to last post
  1. Question Which statistic should i use?

    Hello, I don't know which statistic i should use for my situation: I have 30 spaceships with different caracteristics. I need to buy one,...

    Started by CRD‎, 09-28-2017 09:59 AM
    • Replies: 3
    • Views: 150
    09-28-2017, 11:53 AM Go to last post
  2. Grouping Observations

    Hello! New to the forum here and looking for help. I have 3 separate "Urban" monitoring locations. 10 observations were made at each location. ...

    Started by rs123‎, 09-28-2017 06:07 PM
    • Replies: 3
    • Views: 218
    09-29-2017, 03:59 PM Go to last post
  3. Which model/function should I choose for a variable arrival-rate ?

    Now, I need to resolve a real problem. But because of lacking of statistic knowledge, I do not know how to choose a suitable statistic model/function...

    Started by Jingzhao‎, 10-01-2017 05:17 AM
    arrival model, arrival time, arrival-rate, poisson, variable arrival-rate
    • Replies: 0
    • Views: 127
    10-01-2017, 05:17 AM Go to last post
  4. Financial Research -> Event Study (of stock prices), which Research Strategy?

    I do an Event Study to study stock price reactions to a specific event. I don't understand how this fits in the research onion: Could...

    Started by Mastauser‎, 10-02-2017 07:55 AM
    • Replies: 0
    • Views: 114
    10-02-2017, 07:55 AM Go to last post
  5. Need help to determine statistical method

    Dear Friends, I'm going to test that significant difference of social security measures among Pensioner, epf beneficiaries and non beneficiaries....

    Started by Ruwan85dissanyake‎, 10-03-2017 07:18 AM
    • Replies: 0
    • Views: 133
    10-03-2017, 07:18 AM Go to last post
  6. (URGENT!) Simulating expectations and a conditional expectation

    I need to simulate a conditional expectation of the form: E (Xi^2 /(||X||^2 +h) | R^2 = ||X-T||^2 + ||U||^2 , Zi^2= (Xi - Ti)^2) Where X~N(T,I_p),...

    Started by younes.ommane‎, 10-04-2017 08:38 AM
    conditional expectation, expectation, simulation, spherical statistics
    • Replies: 0
    • Views: 114
    10-04-2017, 08:38 AM Go to last post
  7. Generalised Lambda Distribution

    Hello, Can anyone help me, I am trying to use the Generalized Lambda distribution to model some parts in an assembly, but apart from Wikipedia...

    Started by GG1234‎, 10-02-2017 02:47 AM
    generalised, gld, lambda
    • Replies: 4
    • Views: 190
    10-09-2017, 06:19 AM Go to last post
  8. Poll Poll: Confidence Intervals: Closed or Open Intervals

    I want to pose a question, mainly theoretical in nature, but applied responses are more than welcome. First, I'll define some terms. An interval...

    Started by ondansetron‎, 10-05-2017 06:45 PM
    • Replies: 4
    • Views: 185
    10-10-2017, 06:26 PM Go to last post
  9. Relevance of covariates?

    I have a big group A of individuals that have one common characteristic that make them part of a study in which certain binary variable has to be...

    Started by hebertodelrio‎, 10-07-2017 09:47 AM
    • Replies: 2
    • Views: 218
    10-11-2017, 10:37 AM Go to last post
  10. Which method is correct for my tasks(methodological question)

    I have data on 80 motors, on each cycle, for each motor, different sensors give an indication. How do I suggest on the basis of this data that the...

    Started by psygrm‎, 10-12-2017 06:28 AM
    methodology
    • Replies: 0
    • Views: 122
    10-12-2017, 06:28 AM Go to last post
  11. Average effect size between factors and within an experimental condition

    Dear all, I am interested in an average effect size between heart rate and anxiety. Anxiety is separated in 2 factors (F1 and F2), and I would...

    Started by Stabilo‎, Yesterday 06:18 AM
    correlated correlations, effect size, meta analysis
    • Replies: 0
    • Views: 58
    Yesterday, 06:18 AM Go to last post
  12. Meta-analysis for Pre vs Post (Which SD to use)

    Hello everyone, I have extracted data from longitudinal studies that have collected data on pre and post time points. All studies have same time...

    Started by azizfar‎, Yesterday 12:54 AM
    estimating sd, meta-analysis, pre vs post, sd pooled
    • Replies: 3
    • Views: 134
    Yesterday, 07:58 AM Go to last post

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