Calculate the sample size for surveying or testing based on having a finite universe of people to survey or interview.
  Enter the size of the Finite Universe (how many people)  
  Choose the Confidence Level you want (90%, 95%, 99%).
  Confidence Level SD  
  Enter the Percentage of Population (set to default value of 50%) %
  Select the Confidence Interval (Margin of Error) % (+ or -) for this program.
  Sample size  
  Sample Size for Finite Universe