Mann Whitney U test

Greetings Mathematicians,

I was wondering if someone could please check my work on this mann-whitney u test. http://www.flickr.com/photos/77835031@N02/8476714234/sizes/h/in/photostream/

Important info: The U crit value for n1=10 and n2=10 is 77 at an alpha level of .05


Thank you!

By the way I realized that I accidentally wrote U=9.5 for the larger group. It is actually 95.5. Just a typo on my part