Determine Sample Size Known Population. For example in a population of 5000 10 would be 500. Choose the parameter you are estimating.
The reach or total number of people to whom you want to apply the data. Where the population is unknown the sample size can be derived by computing the minimum sample size required for accuracy in estimating proportions. A good maximum sample size is usually around 10 of the population as long as this does not exceed 1000.
Next determine the critical value of the normal distribution at the required confidence level.
P Percentage of population. Determining the sample sizes involve resource and statistical issues. Usually researchers regard 100 participants as the minimum sample size when the. This equation is for an unknown population size or a very large population size.
