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tiantianchen
  • Member for 9 years, 10 months
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24 votes
1 answer
18k views

Two ways of using bootstrap to estimate the confidence interval of coefficients in regression

22 votes
7 answers
10k views

Can someone help to explain the difference between independent and random?

15 votes
5 answers
15k views

Why applying model selection using AIC gives me non-significant p-values for the variables

10 votes
1 answer
9k views

How to write the error term in repeated measures ANOVA in R: Error(subject) vs Error(subject/time)

8 votes
1 answer
4k views

Why computing the variance of the extracted random effect (using ranef) is not the same as the output from lme?

5 votes
2 answers
349 views

What can I do if the confidence intervals of the predicted mean are small but the predicted intervals are large

5 votes
1 answer
1k views

Intuitive explanation of the relationship between standard error of model coefficient and residual variance

4 votes
1 answer
5k views

How to explain the degrees of freedom of the t-test in lm() output?

4 votes
1 answer
3k views

Decompose a time series data into deterministic trend and stochastic trend

4 votes
2 answers
2k views

Can random forest based feature selection method be used for multiple regression in machine learning

4 votes
1 answer
357 views

Largest or smallest confidence interval at $\pi_{i}=0.5$ in logistic regression

4 votes
1 answer
1k views

Can I trust the result of a one-way ANOVA with many treatments each with very few replicates

4 votes
1 answer
2k views

Test for multinomial distribution

3 votes
1 answer
2k views

Applying log-transformation when comparing two populations

3 votes
2 answers
3k views

Use likelihood-ratio test to select models in case of nested models

3 votes
1 answer
710 views

The biggest difference between medical statistics and biological statistics

3 votes
2 answers
630 views

How to design a sampling scheme for rare events

2 votes
0 answers
312 views

How to test two paired probability distributions

2 votes
0 answers
118 views

How to compute the confidence interval if I have 2 samples?

2 votes
1 answer
522 views

Is this a nested model and can I use the likelihood ratio test?

2 votes
0 answers
294 views

Is this a nested model?

2 votes
0 answers
81 views

comparing traditional p-value/likelihood based model selection vs. bootstrapping/cross-validation based model selection in machine learning

2 votes
1 answer
116 views

Machine learning methods for exploring relationships for a continuous response variable

2 votes
1 answer
386 views

Layman's explanation on stochastic and statistical models

1 vote
1 answer
331 views

How can I interpret the estimated random coefficients (e.g. random intercept) in a mixed model?

1 vote
0 answers
458 views

Comparing variance-covariance matrix of residuals and parameters (means) in a glm, glmm, gam model

1 vote
1 answer
101 views

Metrics in comparing the rank orders of elements from 2 vectors

1 vote
0 answers
104 views

How to handle samples with many replicates for population estimation,when sample size is small?

1 vote
1 answer
8k views

Can I use t-test for interaction in a two-way factorial ANOVA?

1 vote
2 answers
2k views

How can I handle the non-response in this simple random sampling?