e Republican, and 7 to be undecided. At the .05 level is there enough evidence to conclude that this years students are different from previous years?

Based on previous years, Joe 45% of his students to be Democrats,45% to Republicans, and 10% to b be undecided. after randomly sampling 100 students. Joe found 53 to e Democrats,40 to be Republican, and 7 to be undecided. At the .05 level is there enough evidence to conclude that this years students are different from previous years?

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