All Questions
Tagged with confidence-interval variance
110
questions
2
votes
2
answers
3k
views
How to assess accuracy of phone GPS in measuring distances?
I am a complete stranger to statistics (apart from mandatory courses in college), but lately I ran into an interesting real-world scenario.
Recently I started jogging. I take my GPS phone with me to ...
- 123
3
votes
2
answers
247
views
Interval estimation of $\sigma^2$ with the reliability of $95\%$
I got these values from the measurement by a telescope:
20.1, 20.2, 19.9, 20, 20.5, 20.5, 20, 19.8, 19.9, 20.
I know that the actual distance is 20 km and the error of the measurement is not affected ...
- 141
3
votes
0
answers
276
views
Confidence of a variance estimate [duplicate]
Possible Duplicate:
Calculating required sample size, precision of variance estimate?
I would like to present some measure of how variable a particular phenomenon is. This phenomenon appears to ...
- 3,181
6
votes
2
answers
3k
views
Putting a confidence interval on the mean of a very rare event
I'm simulating an extremely rare event (the detection of weighted photon packets in a highly absorbing material). For example, I may simulate the transmission of 1e9 photons and only detect 10 of them ...
- 373
7
votes
2
answers
2k
views
Using bootstrap for glm coefficients variance estimation (in R)
I am fitting a GLM model (in R), and would like to get an estimation of the variability of the coefficients estimated by the model.
If I understand it correctly the method to use in such a case is ...
- 21.8k