Posted by **Yah** on Tuesday, July 27, 2010 at 1:09am.

Let’s continue our analysis of liberals and conservatives, taking a look this time at differences in their educational attainment. We obtain the following information from the 2002 GSS – the average educational attainment for liberals is 13.90 years (SY = 3.27) and the average educational attainment for conservatives is 13.55 years (SY = 2.82). Data are based on 187 liberals and 227 conservative responses.

a. Test the research hypothesis that there is a difference in level of education between liberals and conservatives, set alpha at 0.01.

b. Would your decision have been different if alpha were set at 0.05?

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