All Questions
Tagged with two-sample confidence-interval
6
questions
4
votes
0
answers
122
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Do asymptotic statistics "solve" the Behrens-Fisher problem?
The Behrens-Fisher problem concerns comparing two means from independent (maybe multivariate) samples in a way robust to heteroskedasticity in the populations being compared. It seems that if one ...
- 1,373
1
vote
0
answers
47
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Testing difference of medians and stochastic ordering using paired samples
I have paired samples from skewed distributions with unequal variance (before and after treatment), and would like to test for
difference of means
difference of medians
stochastic ordering of treated ...
- 41
8
votes
2
answers
36k
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what is the difference between a two-sample t-test and a paired t-test
While I was glancing at hypothesis tests, I saw paired and two-sample t-test but couldn't understand the difference. For the explanation of these two tests, I saw the following sentence
" Two-...
- 505
2
votes
3
answers
170
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The mean of natural log of some data
I have the following data in natural log:
N = [0.929, -1.745, 1.677, 0.701, 0.128]
O = [2.233, -2.513, 1.204, 1.938, 2.533]
I want to calculate the mean ratio of ...
- 21
0
votes
0
answers
291
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Confidence Interval for ratio Between Two Means
I am trying to do something similar to what it is explained in this tutorial. The difference is that I want to obtain a 95% CI for the ratio between the means of two populations. In few words, I am ...
- 121
1
vote
0
answers
595
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AB Testing and confidence intervals
Suppose I run an AB test with the goal of increasing the number of users who purchase a product.
After running the test for "long enough" I get that 5% of control users purchase, and 10% of ...
- 11