Timeline for Testing whether a die is biased, reasoning about the approach
Current License: CC BY-SA 3.0
5 events
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| Apr 30, 2017 at 16:20 | comment | added | Glen_b | 1. Look up at the red parts in the diagram. See how it's not the same in each tail? That's the asymmetry in question. 2. If it were symmetric the problem Aksakal is discussing wouldn't be an issue in the first place, so there'd be nothing to solve by assuming symmetry. It's only a problem when it isn't close to symmetric. | |
| Apr 30, 2017 at 16:17 | comment | added | baxx | @Glen_b because I can't see i guess ;) Also - I thought that the binomial became symmetric under certain conditions, I wasn't sure if they were relevant here. | |
| Apr 30, 2017 at 16:15 | comment | added | Glen_b | @baxx But why would you assume symmetry when you can see it isn't so? How does making a plainly false assumption solve the problem resulting from the very asymmetry you're trying to assume away? | |
| Apr 29, 2017 at 14:13 | comment | added | baxx |
Thanks - as said I didn't consider the two tails or word appropriately >.<. $np$ is the expected value yeah, so given that I'm not too sure how I would go about constructing the tails. I think that perhaps I'm able to something something assume symmetry and use a normal distribution? (There's certainly some blind hope there). I should consider this and perhaps make a separate post though. Cheers
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| Apr 29, 2017 at 13:50 | history | answered | Aksakal | CC BY-SA 3.0 |