All Questions
6
questions
0
votes
0
answers
28
views
What test should I perform given repeated measures of one subject in three time periods?
I have data that represents the measurements of the concentration of PM particles in the air at different times (every hour of every day from 2018 onwards), and I am supposed to test whether the rules ...
- 101
10
votes
2
answers
2k
views
Confused about the Mann-Whitney $U$ test. Does it test distribution equality (pdf) or just mean/median equality?
I am rather confused about the Mann Whitney test, many statements I read state it tests for distribution equality between two populations and some state it tests for means/median/central tendency only....
- 215
0
votes
1
answer
10k
views
Differences between Mann-Whitney U and chi-square tests for if two-samples come from same distribution
In a textbook, it introduces the chi-square goodness of fit test to test independence between two variables (organized in a contingency table), which can also be used to test if m samples are likely ...
- 215
2
votes
2
answers
498
views
Is there a robust test for stochastic dominance between two random variables?
I am trying to compare the errors from two statistical models in order to give evidence to one being "better" in terms of lower prediction error than the other.
To formalize this, I thought that a ...
- 21
1
vote
0
answers
28
views
Evaluation of effectiveness of linear filtering on nonlinear processes
I was across the following problem recently. I have a nonlinear bivariate process, where $X$ is causing $Y$, i.e.
$$
y_i=f(x_i) + \varepsilon_i,
$$
where $f$ is a nonlinear function. To evaluate ...
- 101
4
votes
1
answer
3k
views
Should I use Chi Squared/Fisher's Exact Test or McNemar's Test?
Say I did a survey of 100 people asking if they eat vegetables daily. Out of my sample population, 60 say they do, 40 say they don't. Now, I also have the breakdown of males and females. Say in the 60 ...
- 1,505