Sally Smith is a long-time political campaign manager from Chicago. In the primary election there are four candidates. She wishes to determine if voter preference is different over the four major districts. A random sample survey results in the candidate preference frequencies by district and is shown in the following contingency table. Perform an appropriate statistical test to determine if candidate preference is related to the district.

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Preference for Candidates in Primary Election Total 200 150 300 District 52 2 15 78 24 39 54 141