Material Detail

Sample Size Calculator

Sample Size Calculator

This sample size calculator enables you to enter a desired confidence level (either 95% or 99%), the confidence interval, and the population size. It then calculates the sample size needed. Additionally, one can determine the confidence interval by inputting the sample size, population size, and percentage.


  • Peer Review
  • User Rating
  • Comments
  • Learning Exercises
  • Bookmark Collections
  • Course ePortfolios
  • Accessibility Info

More about this material


Log in to participate in the discussions or sign up if you are not already a MERLOT member.