Re: Statistics and --rounds

2018-03-04 Thread Gábor Boskovits
2018-03-03 14:17 GMT+01:00 Gábor Boskovits :

> I will write here a short notice of the statistical implications of
> building software multiple times in general. I hope you will find this
> information useful.
>
> Hypothesis: the probability of successfully building the software is
> greater than or equal to p.
>
> This hypothesis can be accepted with a confidence level c=1-p^(k+1), where
> k is the number of rounds the software was built, and all the builds were
> succcesful.
>

Here is a spreadsheet that shows this in a more useful form. In the
spreadsheet you can see, that what is the probability of a successful build
give that a rounds n build succeeds and given the confidence level. I used
two of the most commonly use confidence levels, but this can be extended if
needed.


Build success probabilities.ods
Description: application/vnd.oasis.opendocument.spreadsheet


Statistics and --rounds

2018-03-03 Thread Gábor Boskovits
I will write here a short notice of the statistical implications of
building software multiple times in general. I hope you will find this
information useful.

Hypothesis: the probability of successfully building the software is
greater than or equal to p.

This hypothesis can be accepted with a confidence level c=1-p^(k+1), where
k is the number of rounds the software was built, and all the builds were
succcesful.