Formula For Computing Sample Size. The sample size for an infinite population as well as for a finite population is. Popular Course in this category.
Feb 26 2010 The formula does not cover finite population. For a confidence level of 95 α is 005 and the critical value is 196 MOE is the margin of error p is the sample proportion and N is the population size. For Infinite Sample Size.
For Finite sample size.
Necessary Sample Size Z-score2 StdDev 1-StdDev margin of error2 This equation is for an unknown population size or a very large population size. In order to calculate the sample size yourself you will need to use this equation. 196 for 95 confidence level p percentage picking a choice expressed as decimal. Necessary sample size Z-score2 standard deviation 1 - standard deviation margin of error2.
