Question: The Special Census of Maricopa County, Arizona, gave 1995 populations for the following cities:
City Population
Buckeye 4,857
Gilbert 59,338
Gila Bend 1,724
Phoenix 1,149,417
Tempe 153,821
Suppose you want to estimate the percentage of persons who have been immunized against polio in each city and can take an SRS of persons. What should be your sample size in each of the five cities if you want the estimate from each city to have margin of error of 4 percentage points? For which cities does the finite population correction make a difference?