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1) A. Construct a 97% confidence interval estimate of the proportion of students in the population who car-pool to college if in a random sample

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A. Construct a 97% confidence interval estimate of the proportion of students in the population who car-pool to college if in a random sample of 200 students, 48 students car-pool to college.

B. Findings from a recent market survey showed that the 95% confidence interval of the proportion of people who use Chic shampoo is (0.42, 0.62). How many respondents were surveyed?

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