Im doing an experiment in Biology on a drug, but im not sure where I can find information on the drug Chantix. i also have a few general questions I was hoping you could help me with...

1. Why is it improtant to have as many subjects as possible in an investigation?
2. why is the manner in which subjects are assigned to study groups important to the valitidty of scientific investigation?

3 answers

Check these sites for information on Chantix.

http://www.google.com/#hl=en&sugexp=ldymls&xhr=t&q=Chantix&cp=5&pf=p&sclient=psy&aq=0&aqi=&aql=&oq=Chant&pbx=1&fp=92d021964da774b7

The more subjects you have, the more sure you are that the results represent the results of most people.
How would I find out how many subjects were included in the study ?
I'm not sure that information is available. But I suggest you start with the many websites about Chantix.