A magazine article conducted a survey of 807 people in Phoenix metro area and found that 45% of the population believe that the suns will win the NBA finals next year. In the accompanying dialogue, the article states, we are 97% confident that the true proportion of people in Phoenix metro area who believe that the suns will win the NBA finals next year lies between 41% and 49%. What does 4% represent in the article? A. a statistic B. a margin of error C. a confidence interval D. a confidence level E. a parameter

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