I am no longer a Corporate Ninja. As of a few weeks ago I can now call myself “Data Scientist at Booking.com”.
Although I am really excited about the new challenges and opportunities that await me in the sexiest job of the 21st century, I must say this new title bothers me ever so slightly. It somehow seems so redundant.
If you’re not using data, is it really science?
Abstract: Claims of large lifts in A/B tests are widespread, yet many are only supported by small online experiments that are likely underpowered. Trustworth...
When something goes horribly wrong mid-experiment, should you stick to the plan or stop the test? A story about two statisticians, and possibly a bear.
Practitioners learn the definitions of type-I and type-II errors and then promptly confuse them. Here is a story that might help.
Abstract: Underpowered studies (below 50% power) suffer from the winner’s curse: A statistically significant positive estimate must exaggerate the true treat...
