1. Home
  2. Statistics
  3. Confidence Intervals

Margin of error - Confidence Intervals

Margin of error

Lessons

  • 4.
    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?
Teacher pug

Margin of error

Don't just watch, practice makes perfect.

We have over 250 practice questions in Statistics for you to master.