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Assume that a father of a teenager in the US is concerned about the number of...

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Statistics

  1. Assume that a father of a teenager in the US is concerned aboutthe number of crimes in schools that involve guns. After someinvestigation, he finds out that out of 320 crime reports inschools, 210 of the crimes involve a gun.

    1. Estimate with 90% confidence the proportion of crimes in schoolsthat involve a gun.

    2. How many reports would this father need to find in order to bewithin 1 percentage point, with 95% confidence?

Answer & Explanation Solved by verified expert
3.8 Ratings (630 Votes)
given data and somenecessary calculations are sample size n 320sample proportion 210320 065625az critical valuefor 90 confidence    See Answer
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