Home      Services      Samples      Insight      Clients      Help/FAQ      Contact      Free Trial      360 Feedback     


Random Sampling Info

Other "Insight" Topics

360 Feedback
Employee Surveys

Survey Random Sample Calculator

If you have not yet conducted your survey and want to calculate how many people you need for your random sample, use calculators #1 and #2 below.
If you already conducted your survey and want to know how accurate your data are given the number of responses you received, scroll down and use calculator #3.

#1 - How many survey respondents do you need?

Specify your desired error level and population size below and click calculate. The numbers next to each confidence level indicate how many people need to complete your survey to achieve the specified error level.
How much error are you willing to tolerate?
If you are not sure, try somewhere between 3% and 6%
   %
How many people are in your population?
  
  90% Confidence
95% Confidence
99% Confidence


#2 - How many people do you need to send the survey to?

How many people need to complete the survey?
From Calculator #1 above
  
What is your estimated response rate?
What % of people do you expect to complete the survey?
   %
  Send the survey to people


#3 - How accurate are your survey results?

How many people are in your population?
  
How many people completed your survey?
  
 
Error Level 
90% Confidence
95% Confidence
99% Confidence




360 Degree Feedback System Employee Satisfaction Survey

info@CustomInsight.com       750 Arrowhead Dr.       Carson City, NV 89706        650-577-9604
Company Info   |   privacy policy