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According to a survey of 100 students in a certain university, 25 students are fans of...

According to a survey of 100 students in a certain university, 25 students are fans of Ravens. (a) Calculate a 95% confidence interval for the proportion of students that are fans of Ravens. (b) Interpret the interval you just found in part (a). (c) Assuming no any available information, how large a sample size is necessary if we want a 95% confidence interval with a width of 10%?

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