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a study was conducted to determine the proportions of smokers among senior citizens. In a sample of 100 senior citizens 60 declared they are smokers.

a study was conducted to determine the proportions of smokers among senior citizens. In a sample of 100 senior citizens 60 declared they are smokers. It is claimed that more than 50% are smokers. What is the parameter of interest and the type of test associated with the hypothesis testing procedure used for testing the validity of the above claim

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