Repeat Exercise 17 assuming that the sample size is doubled to 10,000. Given that the large cost and effort of conducting the Nielsen survey would be doubled, does this increase in sample size appear to be justified by the increased reliability?

Estimate the minimum sample size needed to achieve the given margin of error.

Data From Exercise 7:-

Nielsen Media Research uses samples of 5,000 households to rank TV shows. Nielsen reported that 60 Minutes had 15% of the TV audience. What is the 95%

confidence interval for this result?

Estimate the minimum sample size needed to achieve the given margin of error.