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How many responses do you really need? This simple question is a never-ending quandary for researchers. A larger sample can yield more accurate results — but excessive responses can be pricey. Consequential research requires an understanding of the statistics that drive sample size decisions. A simple equation in this ebook will help you put the migraine pills away and sample confidently.

Why Download this ebook?

Before you can calculate a sample size, you need to determine a few things about the target population. This ebook will walk you through an easy-to-follow sequence of determining an accurate sample size based on your:

  • Population Size
  • Margin of Error
  • Confidence Level
  • Standard of Deviation

Following the steps in this ebook will ensure you get the right size sample for your research.