Importance of sample sizes
Once you have identified the size of the population for your course project, on Mayo clinic you can determine what the appropriate size should be for the sample. Follow the steps below to determine your sampling size:
Using your favorite search engine, perform an Internet search for a sampling size calculator website.
Using the sampling size calculator you find, enter 95% for the confidence level.
Enter 5 for the confidence interval (margin of error) area (this represents a probability level of significance p = .05).
Enter the total population from which you will choose the sample for your course project, and then calculate the sampling size. This number represents the sample you would survey if you were conducting a live study.
Share with your classmates a brief overview of your course project, the specific population you have chosen, the sampling size recommended by the sampling size calculator you found, and which sampling method/type you would use (e.g., simple random sampling) with the type you will use. Discuss your reasons for choosing this method/type.