A scale measuring confidence in the media was administered to a random sample of politically-affiliated Americans, with higher scores indicating greater levels of confidence. A sample of 26 Democrats...

A scale measuring confidence in the media was administered to a random sample of politically-affiliated Americans, with higher scores indicating greater levels of confidence. A sample of 26 Democrats had a mean score of 8.2 on the scale with a standard deviation of 1.5. A sample of 24 Republicans scored an average of 7.8 with a standard deviation of 1.1.
Is there a significant difference between Democrats and Republicans regarding confidence in the media?
Conduct a significance test with alpha = .05.

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  With an alpha of .05, what is the critical score?
  


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  What is the obtained score?