The report discusses the importance of determining the correct sample size for research. The author notes that a larger sample size can yield more accurate results, but excessive responses can be costly. The report provides a simple equation to help researchers calculate sample size, which requires understanding the statistics that drive sample size decisions. The report also discusses the importance of determining the population size, margin of error, confidence level, and standard deviation when calculating sample size. The author notes that a margin of error determines how much error to allow, and the confidence level determines how confident you want to be that the actual mean falls within your confidence interval.
