# Tagged Questions

In frequentist hypothesis testing, the $p$-value is the probability of a result as extreme (or more) than the observed result, under the assumption that the null hypothesis is true.

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### How to calculate p-value for significance test of variables in linear regression

I am trying to find the significance of predictors while using different linear regression models (I am using Python scikit-learn). Scikit-learn does not provide the pvalues of predictors( at least i ...
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### bootstrap p value in STATA

I have create a matrix with bootstrap estimation of the ATT. First I extract a sample using bsample command with cluster , then I estimate the propensity score ,and the ATT using the psmatch2 (with ...
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### p-value for non normalized data [on hold]

I'm working on a project where I want to apply the output of a neural network in conjunction with a greedy (prediction) algorithm. The project is segmentation of 3D volumes. The greedy algorithm ...
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When I run ...
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### unstandardised b coefficient, 95% CI and p-value interpretation in a linear regression

How could I interpret the table when: 1. the unstandardised coefficient has a value equal to 0? 2. either the lower or the upper bound of the 95% CI is 0 but the p-value is less than .05? I just run ...
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### How do I statistically rephrase this question

I am analyzing a dataset containing observations from n number of attempts by players in a game. If I am building a regression model to predict the outcome of each attempt given 1 or more descriptors ...
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### how to predict significance (p-value?) of statistic outcome e.g. Brexit

I would like to know, what the significance of an outcome, e.g. that England gets out of the EU is, given that one has 6 samples of election districts (out of about 140), and in all 6, the outcome is ...
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### Defining “p” value for glmm randomisation psuedo-p value

I am currently using a Bayesian approach to glmm (MCMCglmm in R) to estimate regression coefficients (see here where I ask whether randomisation of fixed effects is ...
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### Adjusting p-values for multiple comparisons with correlated variables

I have three samples of size $N=10^6$ for the three responses $Y_1,Y_2,Y_3$ (or one sample of size $N$ for the random vector $\mathbf {Y}$). For each response the sample is i.i.d., even if the three ...
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### t-statistic for linear regression

I know how to calculate t-statistics and p-values for linear regression, but I'm trying to understand a step in the derivation. I understand where Student's t-distribution comes from, namely I can ...
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### How to ascribe and defend statistical significance in linear regression. P-value interpretation and alternatives

I am studying a treatment that degrades device quality and performed an independent sample test on two batches that had different initial quality. I analyzed the data with a two variable linear ...
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### Sampling distribution of correlation coefficients and NHST

I often see people and libraries (e.g. here, here or here) reporting p-values anytime they measure correlation coefficients between two random variables. This always makes me wonder, what's exactly ...
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### Using randomisation of fixed effects for a psuedo-p in mcmc glmm

I'm running generalized linear mixed models in R using the function MCMCglmm(), and with summary this generates p (pMCMC) values. However, pMCMC is, by the authors ...
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### How to prove significantly high or low values?

I have the counts of genes in particular pathways from three organisms. How to statistically prove that few counts are significantly high or low as compared to another organism. My data looks like ...
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### p-value for the McNemar's test

There's a question I wanted to ask with regards to the McNemar's test applied for case-control study. Suppose I have 2 models, I've fixed specificity and now I could construct the contingency table....
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### High variance of the distribution of p-values (an argument in Taleb 2016)

I'm trying to understand the big picture claim made in Taleb, 2016, The Meta-Distribution of Standard P-Values. In it, Taleb makes the following argument for the unreliability of the p-value (as I ...