Basic Sample Size Calculator. Where N is the population size r is the fraction of responses that you are interested in and Zc100 is the critical value for the confidence level c. This exceeds 1000 so in this case the maximum would be 1000.
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You can use this free sample size calculator to determine the sample size of a given survey per the sample proportion margin of error and required confidence level. Sample Size Calculators At Select we are often asked to help our clients calculate the sample sizes required for a particular survey or study that they plan to undertake. By Nerds For Nerds.
Two independent study groups.
In a population of 200000 10 would be 20000. Choose the required confidence level from the dropdown menu Input the margin of error. If the sample size calculator says you need more respondents we can help. This exceeds 1000 so in this case the maximum would be 1000.
