Calculate Sample Size Interval of a Population Mean

When does .2 round up rather than down? The example in a statistics video changes the rules about rounding. The video walks through how to solve for sample size when you are given the error, z score, and standard deviation. It also graphs the relationship of each of the variables to sample size. 

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CCSS: Adaptable
Instructional Ideas

  • Create practice problems to solve after watching the video
  • The video would work well as homework in a flipped classroom
Classroom Considerations

  • Requires prior knowledge of error, z scores, and standard deviation
  • The third video in a series of six

  • Step-by-step instructions are easy to follow

  • Video only demonstrates how to solve one example problem