Suppose youu are testing the differences in attitudes toward health care reform using Democrats, Republicans, and Independents. What statistical test...

Suppose youu are testing the differences in attitudes toward health care reform using Democrats, Republicans, and Independents. What statistical test would you use?

In case of testing the differences in attitudes toward health care reform using Democrats,Republicans, and Independents I would use the t-test and the z-test. In case of testing ahypothesis...