All Questions
7 questions
2
votes
0
answers
128
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Post hoc after a 2xN chi-squared test
I have two groups of people, and I want to determine if there's a significant difference based on their language. My data consist of word frequencies (how many times a person sayed a given word in a ...
2
votes
2
answers
498
views
Is p-value correction necessary/required for this problem?
Suppose I have multiple regions of a tissue that consists of multiple subtypes of a tumor. I want to compare the significance of differences between these various tumor subtypes (i.e How they differ w....
- 101
2
votes
1
answer
816
views
Row wise significance testing? Chi squared on individual rows?
I have a table of counts with 4 columns and 25 rows. What statistical test should be used to asses significance for values within each row? In other words I want to perform significance testing on ...
4
votes
3
answers
1k
views
Fairness of 6 sided die NOT using Chi Square Test
So I was reading a lot of online articles using the chi-square test to determine the fairness of a die.
Correct me if I am wrong, but isn't the drawbacks of using a goodness of fit test is that you ...
- 165
4
votes
0
answers
247
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Is 'Significance test for Lasso' justified?
Lockhart et al described a "Significance test for the lasso", the motivating example for which is forward variable selection in a linear regression. In their Figures 1 and 2 they show Q-Q plots of a ...
- 563
4
votes
1
answer
271
views
The correct use of 'statistical significance'
Can chi-squared tests be used for making statements like this or is this an inaccurate analysis of my data?
The majority of the groups (n=9) affected by disease ranged in prevalence from 5.56% to ...
- 75
5
votes
2
answers
13k
views
Test if differences between frequencies is significant
I have the following frequency table:
...
- 1,335