Confidence interval for the true proportion of voters

Reference no: EM13100268

A survey of 631 adults showed that 505 of them approved of the way city government was being run.

A) Find a 95% confidence interval for the true proportion of voters who approve of the way the government is being run.

B) How big should the sample size be for the margin of error to be no larger than 1.5%

Reference no: EM13100268

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