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Use the following information for following questions:. The roads in a particular state are in very poor condition, but the state claims that it does not have enough money to repair the roads.
A proposal is on the ballot to raise the sales tax in the state from 6% to 7% to pay for repairing the roads. A month before the election, a survey of likely voters is taken. A random sample of 500 likely voters under the age of 30 is selected, a random sample of 500 likely voters aged 30-49 is selected, and a random sample of 500 likely voters aged 50 or more is selected. Each likely voter is asked whether he/she is in favor of the increase in the sales tax or not.
-If we want to test whether there is an association between the response to the tax increase and age, would this be a test of homogeneity or of independence?
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