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    Hypothesis testing using chi-squared test

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    1. A political science professor is interested in finding out whether there is a relation between political affiliation and attitude towards a recent Supreme Court ruling about challenges to federal affirmative-action programs. He samples a group of registered voters at random and organizes the data collated in the contingency table provided below. According to the information, what can be concluded about the relationship he is interested in studying? Use the 8-step hypothesis testing procedure and include a computer printout of your analysis.
    Table
    Voter Attitudes
    Political Affiliation Approve Do Not Approve Not Sure TOTAL
    Democrats 10 15 5 30
    Republicans 15 15 10 40
    Independents 6 4 5 45
    TOTAL 31 34 20 85

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    Chi squared test is used to test the hypothesis that there is a relation between political affiliation and attitude towards a recent Supreme Court ruling about challenges to federal affirmative-action programs.

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