Sample Size for a Target Margin of Error
This lesson is part of the course
In this lesson
You work out how many completed interviews, invitations and dollars the next poll needs for margins from ±5 to ±2 points, and what it costs to report every district.
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Lessons in this course
- Margin of Error for a Poll Share (95 %, NORM.S.INV) Locked
- Sample Size for a Target Margin of Error Locked
- Small Electorates: the Finite Population Correction Locked
- Stratified Sampling: Proportional vs Equal Allocation Locked
- Post-Stratification Weighting by Age and Region Locked
- Design Effect and Effective Sample Size (Kish) Locked
- Poll Averages: Weighting by Sample Size and Recency Locked
- Lead vs Margin of Error: the Difference of Two Shares in One Poll Locked