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One thing I noticed that I haven't seen commented on yet: The solution mentioned of running a two tailed test would not have solved the problem of a false result the author demonst…

Your comment hits the nail on the head here. Standard statistical tests used in a/b testing are based on one check. If someone is checking repeatedly on a test until they get a 'si…

Technology focused companies can have the same issues. In order to build a clear understanding, it requires not just having the data available (the RIGHT data obviously, and clear …

I enjoyed this book you may want to check out. http://www.amazon.com/Machine-Learning-Python-Techniques-Pre... The main thing to understand though is that machine learning is a big…

[ 456 , 42 , 48 , No ] [ 1 , 2 , 3 , Yes ] [ 3 , 2 , 1 , No ] [ 45 , 46 , 47 , Yes ] [ -1 , 999 ,1238978 , Yes ] [ 1+1 , 1+2 , 1+3 , Fail ] [ 7 , 654 , 653 , No ] [ 7 , 654 , 655 ,…

[ 456 , 42 , 48 , No ] [ 1 , 2 , 3 , Yes ] [ 3 , 2 , 1 , No ] [ 45 , 46 , 47 , Yes ] [ -1 , 999 ,1238978 , Yes ] [ 1+1 , 1+2 , 1+3 , Fail ] [ 7 , 654 , 653 , No ] [ 7 , 654 , 655 ,…