View Full Version : T-Tests


0c5er
11-06-2008, 11:04 PM
I'm supposed to do a research project for my stats class and I'm so confused as to what my professor wants.

We have to answer this sentence of questions:

____, t(df)= _____, p<.05, d = _____

My research was the amount of players from Canada on all college hockey teams in a conference vs. the amount of players from the US on those same hockey teams.

My hypothesis being that there would be more Canadians on the teams vs. Americans.

My SS = 532
Number of teams was 8 so degrees of freedom would be 7. (8-1)

Im not sure if its a 2 tailed test of 1 tailed but I looked up my t-critical value in the back of my book and for a 2 tailed test with the alpha level of .05 the t critical value was 2.365

Help?

jamesmartinn
11-07-2008, 02:11 AM
This sounds like a two-tail test to me given your hypothesis.

H0: u(canada)< u(usa)
H1: u(canada) > u(usa)

Assuming you did the calculations correctly, all you need to do is look up the critical value for a 1 sided tail test.

Best