I found a cool online calculator that purports to calculate the number of population participants needed in order to get your desired confidence level. It might come in handy. (although I cannot guarantee its accuracy)
http://www.custominsight.com/articles/random-sample-calculator.asp
The seemingly indestructible fists of the mantis shrimp can take a punch
-
Specialized structures in the animal's claws can seemingly absorb impact.
10 hours ago
No comments:
Post a Comment