What are some case studies on sample size in research?

What are some case studies on sample size in research?

There are several notable case studies that illustrate the importance of sample size in research. For instance, a study on the effectiveness of a new drug found that a larger sample size led to more reliable results.

Can you give me another example?

Sure! In a survey about consumer behavior, researchers discovered that a sample size of 1,000 provided more accurate insights than a sample of 100.

What factors should I consider when determining sample size?

Key factors include the population size, the margin of error you can accept, the confidence level, and the expected variability in your data.

How can I calculate the sample size needed for my study?

You can use sample size calculators or formulas that take into account your desired confidence level, margin of error, and population size.