Margin of error - Confidence Intervals

Margin of error


  • 3.
    A survey is done linking the number of concussions a season to hockey players. The NHL consists of 700700 players and we wish to have a confidence level of 0.950.95 (corresponding to a critical value of Zα2=1.96Z_\frac{\alpha}{2}=1.96). Let us assume that the point estimate will be p^=0.0125\hat{p}=0.0125 for every sample taken.
    • c)
      What is the margin of error, if 350 players are sampled?
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Margin of error

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