Sample size calculation

[John Doe]

What quantities do I need to calculate sample size?What strategies can I use to obtain a sample size?

[quark]

You ned the margin of error, standard deviation, and level of confidence to calculate sample size. Here is a good summry:

http://mgtclass.mgt.unm.edu/Kraye/PADM%20597%20Spring%202009/
(Go to the link: How to determine sample size.doc)