Calibration test


Please answer to the questions by giving a lower and upper bound so that you are 90% confident with your answers. If you really are, you should get around 9 of the answers correct. If you get all ten correct, you were probably under confident. If you get 7 or less (like most of the people do), you are over confident.

Please do not try to google the answers. That is not the point of this test.

The questions are from the book How to Measure Anything: Finding the Value of Intangibles in Business by Douglas W. Hubbard.

  Question Lower bound Upper bound  

(The answers stay on your computer. They are not sent anywhere.)