It is known that the population variance equals 484. With a 0.95 probability, what is the sample size that needs to be taken if the desired margin of error is 4 or less? Round your answer up to an...

It is known that the population variance equals 484. With a 0.95 probability, what is the sample size that needs to be taken if the desired margin of error is 4 or less? Round your answer up to an integer.