Best place for a beginner to learn statistics.

3 questions if I may. What statistics subjects would I need to learn in order to understand the values in studies such as the following; , and where is the best place to learn them? Is there any single source where studies that have been replicated/reproduced are gathered, so I can avoid having to work out manipulated p-value studies etc.? submitted by /u/Merensongo [link] [comments]

What is the correct way to follow up a multivariate multiple regression?

tl;dr What is the appropriate follow-up test after a multivariate multiple regression to interpret the nature of the significant effects? I recently conducted a study in which I used a series of multiple linear regressions to predict different outcomes (y1-y6) using the same set of predictor variables (x1-x8). My hypotheses were that all of the predictors (barring x7 and x8, which were dummy variables) would be significantly associated with each outcome, and that x1 in particular would exert the strongest effect. To give an example of some of the results, the separate univariate regressions indicated that x1 and x2 were significant predictors of y1; that x1, x3 and x4 were significant predictors of y2; that there were no significant predictors of y3; and so on. Noting that the outcomes were relatively intercorrelated (r values ~= 0.15=0.35), a reviewer suggested it would be more appropriate to use a multivariate multiple regression instead. I’ve never been taught this technique before, but using advice I found online I ran the analysis using: mlm1

I want to compare survey results taken from the same group at two different time points but the sample has changed.

I assume I would do a T test for this. However, for one group that I’m comparing, 15% of the group was unavailable for the second survey. And in another group, there were 5 additional people out of 45 people present that weren’t there for the first survey. The survey was anonymous so I can’t link answers from the first and second surveys. How do I handle this kind of data discrepancy? submitted by /u/gremlin989 [link] [comments]

Hi, would this question be considered nominal, ordinal, interval or ratio?? I am really stuck on this one for my research project and any help would be greatly appreciated! Thanks in advance

On average, how much money do you spend per month gambling on English football online? Answers £0-10, £11-30, £31-50… £500 + submitted by /u/Grumpypenguin73 [link] [comments]

Several reviews of Deborah Mayo’s new book, Statistical Inference as Severe Testing: How to Get Beyond the Statistics Wars [with useful discussion ongoing, Gelman’s blog]

Several reviews and now a useful discussion ongoing: submitted by /u/D-Juice [link] [comments]

Simple Questions – April 12, 2019

This recurring thread will be for questions that might not warrant their own thread. We would like to see more conceptual-based questions posted in this thread, rather than “what is the answer to this problem?”. For example, here are some kinds of questions that we’d like to see in this thread: Can someone explain the concept of maпifolds to me? What are the applications of Represeпtation Theory? What’s a good starter book for Numerical Aпalysis? What can I do to prepare for college/grad school/getting a job? Including a brief description of your mathematical background and the context for your question can help others give you an appropriate answer. For example consider which subject your question is related to, or the things you already know or have tried. submitted by /u/AutoModerator [link] [comments]

Statistical inference in practice

Hey team, I am a studier of statistics (albeit not a great one). I have done courses on Classical and Bayesian inference, and have also done one into to applied statistics course, but plan on doing more next year. Now in my inference courses, we always assume that we are dealing with some given family of distributions, either we judge something to be from a certain family or we say it is because…reasons. And using this assumption that the likelihood comes from some family, or we judge the prior to be from some family, we can do a whole bunch of nice statistical inference stuff like confidence intervals, parameter estimation and much more! However it seems this whole theory is based upon knowing/judging which family of distributions PDF’s are from? We have gone into the theory of statistical inference which I love, but can anyone tell me how it is used in practice? Basically my main question is: 1) Does it ever make sense to guess a likelihood distribution about looking at a frequency graph? So, for events I can say Bernoulli, or waiting time I can say Gamma, but all these are just guesses. And when delving into the realm of truly random processes, the best I can think of is to say “that looks Normal!”. Can anyone shed some insight into this? Many thanks. 2) Judging priors is whack. Perhaps after looking at more applied content I can read more about how this is done, but so far my knowledge is basically “choose a Beta distribution and adjust the parameters to suit uncertainty and location”. Thanks for your help, and I hope this isn’t a totally nooby question, as it certainly feels like it. Love y’all. submitted by /u/CivcraftPlayer123 [link] [comments]