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Finding the sample size: Polls are to be conducted in two cities to determine the...

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Finding the sample size: Polls are to be conducted in two cities to determine the difference in the proportions of residents who believe that the economy willimprove over the next year. A 98% confidence interval will be constructed for the difference between the proportions. If the sample sizes are to be equal in thetwo cities, how large should each sample be so that the margin of error will be no more than 0.09 Round up your answer to the nearest whole number.

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