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test subjects

Posted: Sun Dec 26, 2004 2:07 pm
by Astronomy Guy
I'm wondering how many objects I should test in a science fair project to justify which of my categories outperforms the other in something. Can anyone help?

Posted: Thu Dec 30, 2004 11:06 am
by shijun
Hello!

The answer to this question depends on what you want to test for. What is your hypothesis? And can you give me some more details?