What is the right hypot test if I want to determine if there is a difference between effectiveness of 2 treatment groups: 1 control and 1 treatment group

What do YOU think ?
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I was thinking two tailed t test but have no confidence in my choice haha

[QUOTE=Curlyben;3436976]What do YOU think ?
While we're happy to HELP we won't do all the work for you.
Show us what you have done and where you are having problems.. [/QUOTE

Hi, Was I right with the 2 tailed t test? I'm sorry to trouble u but it's past midnight here and I have to have things finished soon. Lots has happened lately so I have fallen behind a bit, if u could give me an answer soon, I would be most appreciative. Thank you kindly