print email comment close Sample Size Calculator URL: http://www.surveysystem.com/sscalc.htm Description: Want to take a survey but not sure how many responses to collect? This calculator gives you the number for any given population size and desired confidence level. A reverse calculator lets you enter characteristics of an existing survey and gives the confidence interval (plus-or-minus number) to apply to the results. This site, sponsored by a survey software company, also gives clear explanations of statistical significance, survey design, and related concepts. Publisher: Creative Research Systems Extra Keywords questionnaires, polls, polling Library of Congress Subject Headings: Sampling (Statistics) Surveys LII Database Information: Record 16077 created by John Kupersmith on 02/22/2004 Last modification on 02/23/2004 Published: 02/22/2004   Funding agency: California State Library LII Item ID: http://lii.org/cs/lii/view/item/16077